CROSS-REFERENCE TO RELATED APPLICATIONS
FIELD
[0002] This disclosure relates to an infant calming, sleep promoting and SIDS preventing
device.
DESCRIPTION OF THE RELATED ART
[0003] Persistent crying and poor infant sleep are perennial and ubiquitous causes of parent
frustration. During the first months of life, babies fuss/cry an average of about
2 hours/day and wake two to three times a night. One in six infants is brought to
a medical professional for evaluation for sleep/cry issues.
[0004] Infant crying and parental exhaustion are often demoralizing and directly link to
marital conflict, anger towards the baby and impaired job performance. In addition,
they are primary triggers for a cascade of serious/fatal health sequelae, including
postpartum depression (which affects about 15% of all mothers and about 25 to about
50% of their partners), breastfeeding failure, child abuse and neglect, infanticide,
suicide, unsafe sleeping practices, SIDS/suffocation, cigarette smoking, excessive
doctor visits, overtreatment of infants with medication, automobile accidents, dysfunctional
bonding, and perhaps maternal and infant obesity.
[0005] Traditional parenting practices have utilized swaddling, rhythmic motion and certain
sounds to soothe fussing infants and promote sleep (by reducing sleep latency and
increasing sleep efficiency). "Sleep latency" may be defined as the length of time
between going to bed and falling asleep. "Sleep efficiency" may be defined as the
ratio of time spent asleep (total sleep time) to the amount of time spent in bed.
[0006] Swaddling, rhythmic motion and certain sounds imitate elements of a baby's in utero
sensory milieu and activate a suite of subcortical reflexes, called the "calming reflex,"
during the first 4-6 months of a baby's life. After that time, these stimuli can still
promote infant sleep, but they do so by activating a conditioned response.
[0007] Swaddling is a method of snug wrapping with the arms restrained at the baby's sides.
This imitates the confinement babies experience in the womb and the continual touch
they experience from the soft lining of the uterine walls. Swaddling also inhibits
startling and flailing, which often interrupts sleep and starts/exacerbates crying.
[0008] Rhythmic, jiggling motion replicates the movement fetuses experience when the mother
is walking. The motion stimulates the vestibular apparatus in the semicircular canals
of the inner ear. A specific, rumbling noise imitates the sound created by the turbulence
of the blood flowing through the uterine and umbilical arteries. In utero, the sound
level babies hear has been measured at between 75 and 92 dB. Each baby has a specific
and distinctive unique mix of motion and sound that most efficiently activates his
or her calming reflex. This preferred mix stays consistent through the first months
of life (i.e. babies who respond best to swaddling plus jiggling continue to respond
to those modalities over time and don't abruptly switch their preference to swaddling
plus sound).
[0009] The calming reflex has several constant characteristics. It is triggered by a stereotypical
sensory input; produces a stereotypical behavioral output; demonstrates a threshold
phenomenon (i.e. stimuli that are too mild may not be sufficient to activate a response);
has a threshold that varies between individuals (i.e. is higher or lower for any given
child); the threshold varies by state (e.g. fussing and crying raise the level of
stimulation required to exceed threshold and bring about reflex activation); the reflex
is almost irresistible at first, but wanes after 3-4 months of age.
[0010] Since the nominal level of a stimulus needed to reach the triggering threshold of
the calming reflex differs from one child to the next, failure to exceed a particular
child's threshold level often results in a total absence of a calming response. For
example, slow smooth motion may calm one upset infant, yet be too subdued to calm
another. Likewise, moderately loud sound (e.g., at a level of about 78dB) sound may
reach the calming threshold for one child, but be insufficient to calm another. Once
triggered, the stereotypical output of the calming reflex is a reduction of motor
output and a more tranquil state (quiet alert state or sleep). In this context, the
word "state" describes an infant's level of attention to and interaction with the
environment. Infants experience at least six identifiable states in this context:
quiet sleep, active sleep, drowsiness, quiet alert, fussing and crying. The intensity
of sound and motion needed to trigger any particular baby's calming reflex is substantially
greater than the levels needed to keep the calming reflex activated.
[0011] However, despite the convenience, efficacy and availability of swaddling, rhythmic
motion and sound, these methods fail to calm and promote sleep in a large portion
of the infant population because they are not being applied correctly. When parents
fail to reduce infant crying and promote sleep, they often bring the baby into their
own bed. However, this is problematic because sharing a bed with a parent has been
proven to raise an infant's risk of Sudden Infant Death Syndrome (SIDS) and accidental
suffocation (which the US Centers for Disease Control reports has been increasing
by 14% per year for approximately twenty years). The hazard of bed sharing is further
elevated if the parent is extremely fatigued. Like inebriation, exhaustion reduces
adult judgment and responsiveness. As many as 50% of new parents report sleeping fewer
than 6 hours/night, the level demonstrated in adults to cause a level of impairment
of attention and cognition comparable to inebriation. For this reason, bed sharing
with an exhausted parent increases the SIDS risk and the suffocation risk (from accidental
overlaying of the parents body over the infant's head, pulling bedding over the baby,
etc.).
[0012] Other behaviors that stressed, exhausted parents engage in also directly raise the
risk of SIDS and suffocation (e.g. cigarette smoking, cessation of breast feeding,
falling asleep with the baby on a couch, placing the baby on the stomach to sleep).
Medical authorities recommend parents avoid bed sharing. However, cribs too can be
problematic. Babies sleeping supine in cribs have a higher risk of plagiocephaly (flattening
of the skull), which may require expensive and inconvenient medical treatment, and
may result in permanent deformity. A crib's flat, quiet, nonmoving surface is devoid
of the swaddling, rhythmic motion and sound that can activate the calming reflex or
conditioned response and reduce crying and sleep latency and increase sleep efficiency.
[0013] In an attempt to improve infant sleep in cribs, parents have employed several methods
(prone sleeping, swaddling, rocking motion, sound), however each is problematic. For
example, the prone position is associated with a 3-4 fold increased risk of SIDS.
Unswaddled babies can roll to the stomach position (prone), which is associated with
an 8-19 fold increased risk of SIDS. Swaddled babies can roll prone, which is associated
with a 12-fold increased risk of SIDS. Rocking motion delivery systems (e.g. swings,
cradles and hammocks) may all present problems. The motion of infant swings is often
insufficient to calm a fussy baby and induce sleep. When sitting in a swing, a baby's
head can roll forward and create an airway obstruction, leading to death. Cradles
and hammocks require parents to be the motion-powering energy source, and thus can
be done for only a limited part of the sleep period. Also, they can accidentally cause
a supine baby to roll to he side or stomach or become wedged into the side wall of
the sleeper. Sound delivery devices (e.g. fans, air filters, hair driers, sound machines
and white noise CDs) may be cumbersome and expensive and the volume, quality or frequency
profile of the sound they produce may be excessive or too different from in utero
sound to be effective.
[0014] Over the past twenty years, attempts have been made to engineer technological methods
to create infant calming/sleep devices to deliver sound and motion more conveniently.
These current infant calming/sleep devices typically deliver fixed and unchangeable
motion and sound. This is a problem because each baby has a different mix of sound
and motion that most efficiently calms the child's crying. For example, some babies
respond best to swaddling plus motion, while others are not calmed unless they have
swaddling, motion plus white noise sound. Another problem with fixed motion and sound
infant calming/sleep devices is that each baby has a unique level of motion and sound
that induces calming and sleep most efficiently. For example, slow rocking may reduce
sleep latency for one infant, yet be too subdued to do so in another infant. And,
quiet sound may be sufficient to increase sleep efficiency for one baby, but not another.
Devices that deliver constant sound may also expose a baby to unhealthy levels of
sound, if they are set at too high a volume.
[0015] Still another problem with fixed motion and sound infant calming/sleep devices is
that the intensity of the stimuli needed to activate the calming reflex and induce
calm and sleep varies substantially as a child's state changes. For example, most
fussy babies require more vigorous, jiggling motion (with rapid acceleration-deceleration)
and more vigorous sound inputs (as loud as a vacuum cleaner or hair drier - 75 to
95 dB). On the other hand, calm, sleepy babies need less vigorous inputs. Further,
current infant calming/sleep devices do not continue all night long; do not deliver
optimal sound and motion for triggering the calming reflex; do not increase and decrease
their sensory input in a step-wise fashion to vary the sensory input intensity to
give the baby the most effective level of stimulation with the minimum exposure to
high levels of sound; lack the ability to gradually increased the sensory input over
the first weeks of life and to gradually wean a baby off the stimuli as he or she
ages.
[0016] In addition, crib death or SIDS (Sudden Infant Death Syndrome) is a leading cause
of infant mortality. Approximately 2500 US babies die each year from SIDS during the
first year of life. The peak occurrence is from 2-4 months of age, with 80% of the
victims being under 4 months and 90% being under 6 months of age.
[0017] In the 1990's a program to reduce SIDS deaths called "Back to Sleep" was introduced.
At that time, it was discovered that sleeping on the stomach was a key triggering
factor in SIDS, so caregivers were instructed to place babies on their backs for sleeping.
Within less than a decade, the rate of SIDS dropped in half, however, since that time,
the SIDS incidence has been not diminished. Furthermore, while the exact cause of
SIDS is unknown, the primary cause is believed to be immaturity of the breathing regulatory
system in the brain. In essence, it seems that babies "forget" to breath and their
internal alarm system does not reliably arouse them to recommence breathing. Once
breathing stops, the body becomes more and more hypoxemic and acidotic, leading to
a downward spiral of reduced heart rate, dropping blood pressure, cardiovascular collapse
and death. Studies have indicated that the risk of stomach sleeping may indeed predispose
babies to SIDS by reducing infant arousability.
[0018] In the hospital setting, the use of an infant monitor immediately alerts the healthcare
workers if an infant stops breathing. The health care workers can often resuscitate
the infant with simple stimulation (e.g. vigorous jiggling), without the need of oxygen
or formal CPR.
[0019] In the home setting, however, studies have not shown that using a cardiorespiratory
monitor reduces the incidence of SIDS. This lack of effect may be because, 1) the
parent responding to the alarm may not know how to resuscitate the baby; 2) the parent
may be panicked and incapable of resuscitating the baby; 3) the baby may be so hypoxic
and acidotic, that, by time the parent arrives at the scene, an irreversible cardiorespiratory
collapse has already been precipitated.
[0020] However, a device that can begin vigorous stimulation of the baby within seconds
of the baby stopping breathing (apnea) may be able to arouse the minimally depressed
baby and reinitiate the breathing sequence before a downward cardiovascular spiral
has occurred. The "Back to Sleep" program has proven that simple interventions can
lead to a profound reduction in mortality by virtue of helping babies be slightly
more aroused, as they are in the supine position. In other words, it may not take
a great amount of sensory input maintain the baby in a mode of regular breathing or
to return the baby to normal breathing after a brief, transient cessation. Also, two
studies have shown that supine swaddling is associated with a reduction in SIDS. Swaddling
has been shown to increase arousability, especially during active sleep.
[0021] Therefore, a need exists for an infant calming/sleep system that overcomes or minimizes
the above-mentioned problems.
[0022] WO2013/059625 A1 discloses an infant calming/sleep-aid device including a main moving platform that
moves in a reciprocating manner and an actuator that drives the reciprocating movement
of the main moving platform. The moving head platform is linked to the main moving
platform and at least one of a motion sensing device and a sound sensing device are
either at or proximate to a moving head platform that is pivotally linked to the main
moving platform. A logic circuit links at least one of the motion and sound sensing
devices of the infant calming/sleep aid-device to the main moving platform whereby
signals detected modulate movement of the main moving platform.
[0023] US2010/030122 A1 discloses an automated infant massager system that monitors an infant's physical,
physiological and behavioral response to the massage and can adjust the intensity
of the massage and massager duration settings based on the responses of the infant
and/or information from a user, preferably autonomously.
[0024] US6175981B1 discloses a child's bed mat that provides a comfortable sleeping surface which includes
vibration devices for soothing a child to sleep. A vertical portion of the mat is
strapped in an upright attitude to the vertical rungs of a crib, for instance, and
enables the placement of a control box out of reach of the child. The mat is constructed
so as to be easily folded for portability.
SUMMARY
[0025] This disclosure is generally directed to devices and methods for aiding calming and
safe sleep of an infant. According to the invention, a sleep system comprising an
infant calming/sleep-aid device is provided as defined in claim 1. This device can
be independently controlled, from the device itself, or via communication with a mobile
device application that also delivers users various forms of information about sleep,
their baby, etc. Also, a secure sleep sack design may be provided which prevents accidental
rolling to the potentially risky prone position. Furthermore, this device may contain
a sensor to monitor one or more of the baby's biometrics to detect when the baby has
temporarily stopped breathing. In that case, the device will sound an alarm to summons
the caregiver and commence vigorous motion and sound - similar to the intervention
used by medical personnel to arouse apneic infants in the hospital - before the baby
becomes acidotic and bradycardic. The device can also be programmed by the parent
to call 911 or local emergency services in case of cessation of breathing of the infant.
[0026] According to the invention, an infant calming/sleep-aid device is provided that includes
a main moving platform that moves in a reciprocating manner. An actuator drives the
reciprocating movement of the main moving platform. An optional moving head platform
may be linked to the main moving platform to reciprocate in response to reciprocating
movement of the main moving platform. In some embodiments, at least one of a motion
sensing device and a sound sensing device are, respectively, at or proximate to main
moving platform or the moving head platform. A logic system links at least one of
the motion sensing device and the sound sensing device to the main moving platform,
whereby signals detected by at least one of the motion sensing device and the sound
sensing device cause the logic circuit to modulate the movement of the main moving
platform and the intensity of the sound produced by the sound generation system.
[0027] In some embodiments, the infant calming/sleep-aid device includes a rigid base and
a main movement linkage or bearing extending from the base. A moving infant support
is mounted on the main movement linkage or bearing, whereby the platform is movable
on the main movement linkage or bearing relative to the base. An actuation assembly
that controls movement of the moving platform about the main movement linkage or bearing
relative to the rigid base includes an actuator mounted to the rigid base.
[0028] In some non-claimed embodiments, a method for aiding the calming of a fussy infant
or the sleep of an infant, includes the step of moving the infant on the platform
in a reciprocating or rotating manner about an axis that intersects the infant at
a 90° angle to a major plane of the surface supporting the infant, repetitively moving
the supporting surface up and down, a combination of such movements, or others. For
example, motion of the platform in other planes in addition to a horizontal plane,
such as a swinging motion, or rotating motion around a horizontal axis, is also possible.
[0029] The movements may be made in an adaptive manner. In some embodiments, at least one
of a sound generated by a sound generating device and a reciprocating or repetitive
or rotating movement may be modulated in an updating and adaptive matter by a logic
circuit-controlled actuation in response to at least one of the sound of the infant
and the motion of the platform. In embodiments, sound may delivered to an infant in
the device but not motion if the infant is not securely attached to the platform.
In embodiments, motion may delivered to an infant in the device but not sound, at
the parents choice.
[0030] The device has many advantages. For example, the device and provides for modulation
of the movement of an infant in an updating and adaptive manner. The rapidly accelerating
and decelerating motion of the device, which induces the infant's head to accelerate
and decelerate over a short distance in a safe and specifically controlled manner,
imitates the sensations that babies experience before birth in the womb. During the
first 6 months of an infant's life these sensations induce the infant's natural calming
reflex. In addition, after just days to weeks of time, these cues begin to trigger
a conditioned response. The device's specifically designed motion and sound, along
with its adaptive control system reduce irritability during awake time and improve
infant sleep (specifically reducing irritability during periods of sleep, reducing
sleep latency and increasing sleep efficiency) for babies up to at least twelve months
of age.
[0031] As further steps to reduce SIDS, the infant calming/sleep system described herein
may provide babies with a secure swaddle or sleep sack, as two studies have shown
that a supine swaddle may reduce SIDS. The secure sleep sack described herein is intended
to: 1) prevent overheating; 2) promote greater air flow; 3) prevent accidental rolling
to the stomach when the baby is unsupervised. A sensor to detect when the baby stops
breathing to cue/trigger a vigorous response and the sending of an alarm to parent
may also be included in the infant calming/sleep system. This sensor can cue or trigger
a rapid response of vigorous motion/sound and generate an alarm to summons the caregiver
or send an automatic message to call for emergency medical services, such as via a
WIFI connection.
[0032] In non-claimed embodiments, a method for preventing SIDS includes the steps of providing
a sleep device comprising a platform for supporting an infant; monitoring the infant
with a sensor that generates a signal indicative of at least one of a motor status
or a physiologic status of the infant; receiving and analyzing, by a control system
of the sleep device, the generated signal indicative of the motor status or the physiologic
status of the infant; generating, by the control system of the sleep device, at least
one output that controls at least one of a motion of the platform and a sound directed
to the infant if a distressed status of the infant is detected based on the analyzed
signal; and generating at least one of reciprocating motion of the platform and a
sound directed to the infant in response to the at least one output.
BRIEF DESCRIPTION OF FIGURES
[0033]
FIG. 1 is a perspective view of an exemplary embodiment of an infant calming/sleep-aid
device, with a depiction of an infant asleep inside the device.
FIG. 2 is a perspective view of the infant calming/sleep-aid device of FIG. 1 with
swaddle fastening straps and without an enclosure.
FIG. 2a is a perspective view of the infant calming/sleep-aid device of FIG. 1 with
swaddle fastening clips integral to the swaddle and without an enclosure.
FIG. 3 is a perspective view of the infant calming/sleep-aid device of FIG. 2, showing
apparatus beneath the main moving platform in broken lines.
FIG. 4 is a plan view illustrating components supporting the main moving platform
of the infant calming/sleep-aid device of FIG. 3, with the rigid base and main moving
platform shown in outline.
FIG. 5 is a side view of the infant calming/sleep-aid device shown in FIG. 4, taken
along line 5-5.
FIG. 6 is a side view of the infant calming/sleep-aid device shown in FIG. 4.
FIGS. 6a illustrates a drive motor of the infant calming/sleep-aid device shown in
FIG. 4 or of other embodiments of the infant calming/sleep-aid device.
FIG. 6b illustrates an exemplary location of a drive motor on another exemplary embodiment
of an infant calming/sleep-aid device.
FIG. 6c illustrates a cross sectional view of an embodiment of the infant calming
device/sleep-aid device showing the drive motor.
FIG. 7 is a perspective view of yet another exemplary embodiment of the calming/sleep-aid
device of the invention, showing components of the device beneath the main moving
platform in broken lines.
FIG. 8 is a plan view of components supporting the main moving platform of the calming/sleep-aid
device of FIG. 7, with the rigid base and main moving platform shown in outline.
FIG. 9 is a side view of the embodiment of the device shown in FIG. 7.
FIG. 10 is a schematic representation of one embodiment of a software control system
of the calming/sleep-aid device, along with inputs and outputs of the software control
system.
FIG. 11 is a schematic representation of one embodiment of a crying detection module
of the calming/sleep-aid device.
FIG. 12 is a schematic representation of one embodiment of a motion analysis module
of the calming/sleep-aid device.
FIG. 13 is a schematic representation of one embodiment of a behavior state machine
module.
FIG. 13a is a schematic representation of one embodiment of a biometric sensor module.
FIG. 14 is a schematic representation of one embodiment of an audio generation module.
FIG. 15 is a schematic representation of a motion generation module.
FIG. 16 is a schematic representation of a motion generation module.
FIGS. 17-21 illustrate another exemplary embodiment of an infant calming device having
a moving main platform with an integral head platform portion.
FIG. 22 is schematic diagram of control system related components of an exemplary
infant calming/sleep-aid device.
FIG. 23a illustrates another exemplary embodiment in a perspective partially cut-away
view of an infant calming/sleep-aid device viewed from one end of the device, and
which can incorporate the control system of FIG. 22.
FIG. 23b is an exploded perspective view of the infant calming/sleep-aid device of
FIG. 23a, showing individual components of the infant calming/sleep-aid device.
FIGS. 23c and 23d are perspective views of the infant calming/sleep-aid device of
FIG. 23b.
FIGS. 23e-23h illustrate exemplary embodiment of leg connectors of the infant calming/sleep
aid device of FIG. 23b, which are used to attach legs.
FIG. 24a is a view of the attachment mechanism to attach a secure sleep sack to the
infant calming/sleep aid device of FIG. 23b.
FIG. 24b is a top perspective view of the infant calming/sleep-aid showing the part
of the attachment mechanism that allows a secure sleep sack to be attached to the
infant calming/sleep-aid device of FIG. 23b.
FIGS. 25a-25j are views of exemplary secure sleep sacks.
FIG. 26a illustrates views of layers displayed by a user interface for use with the
infant calming/sleep-aid device of FIG. 22.
FIG. 26b illustrates views of sliders displayed by a user interface for use with the
infant calming/sleep-aid device of FIG. 22.
FIG. 26c illustrates views of blossoms displayed by a user interface for use with
the infant calming/sleep-aid device of FIG. 22.
FIG. 26d illustrates additional views displayed by a mobile application user interface
for use with the infant calming/sleep-aid device of FIG. 22.
FIG. 27 illustrates additional views displayed by an exemplary mobile device application
user interface for use with the infant calming device.
FIGS. 28 and 29 illustrates exemplary embodiments of a clip or switch for control
purposes of the device.
DETAILED DESCRIPTION
[0034] In an exemplary embodiment, shown in FIGS. 1 through 6, infant calming/sleep-aid
device 10 includes an enclosure 12 about an infant 14. Enclosure 12 surrounds main
moving platform 16. Main moving platform 16 may be made from wood-based particleboard
with an injection molded support tray or the entire platform may be injection molded.
The injection molded support tray may provide stiffening ribs, attaching features,
and the like. As can be seen in FIG. 2, main moving platform 16 includes base 18,
moving head platform 19, padding 20 and cloth covering 22. Secure sleep sack fastening
straps 24 extend from main moving platform 16 for securing infant 14 in suitable secure
sleep sack 26. As can be seen in FIG. 2a, sleep sack fastening straps may take other
forms such as attachment clips and may be integral to the sleep sack 26. This embodiment
includes a head pad insert 28 that supports the head of infant 14. Preferably, head
pad insert 28 includes a gel in order to reduce the risk of plagiocephaly. Handles
30 extend laterally from main moving platform 16. Main moving platform 16 is supported
and rotatable about a main support shaft (not shown) that is fixed to rigid base 32.
Rigid base 32 may be made from molded plastic, stamped metal, and the like. Control
panel 34, which includes speed control knobs 35, status lights 37 and controls 39
for microphone 38. Rigid base control electronics 36 may include drive electronics
of the infant calming/sleep-aid device 10, as well as other sensors, such as an accelerometer
or biometric sensor (not shown).
[0035] In another representative view of infant calming/sleep-aid device 10 of FIG. 2, shown
in FIG. 3, main moving platform 16 is supported by main support shaft 40 at main rotation
bearing 42. Moving head platform 19 supports head pad insert 28 and is rotatable about
head rotation bearing 46 through arm 48 extending between head rotation bearing 46
and moving head platform 19. Motion sensing device 50, such as an accelerometer, at
moving head platform 44 detects motion of moving head platform 19. Microphones 38
at moving head platform 19 detect sound emitted by the infant (not shown) when supported
by infant aid sleep device 10. Speakers 52, supported by brackets 54 mounted on rigid
base 18, are located directly beneath moving head platform 19. Springs 56 linking
either side of moving head platform 19 to main moving platform 16 dampen motion of
moving head platform 19 relative to main moving platform 16 during reciprocal motion
of moving head platform 19 induced by reciprocating motion of main moving platform
16.
[0036] Reciprocating motion of main moving platform 16 about main support shaft 36 is about
an axis that is orthogonal to a major plane of main moving platform 16. Reciprocating
motion of main moving platform 16 is driven by actuator assembly 58.
[0037] In some embodiments, the body and the head of the infant can be out of phase. For
example, at relatively slow speeds, the motion of the head of the infant can be in
the same direction as that of the motion of the upper body of the infant. At relatively
high speeds, the reciprocal motion of the head of the infant can be in the opposite
direction as that of the upper body of the infant. In another embodiment of the invention
(not shown), reciprocal motion of the head of the infant can be in some other direction,
such as orthogonally relative to the plane of the main support platform.
[0038] Actuator assembly 58 includes drive motor 60 mounted to rigid base 32 and gear assembly
62 linked to drive motor 60 and also mounted to rigid base 32. Drive motor 60 may
be an electric motor with a reciprocating drive disk and push/pull rod.
[0039] Actuation of drive motor 60 causes rotation gear assembly 62 to drive eccentric drive
plate 64 about an axis normal to a major plane of rigid base 32. Eccentric drive plate
64 is linked to swing arm plate 66 of actuator assembly 58 that extends from eccentric
drive plate 64 to rod end 68 of screw 70 and is pivotally mounted to rod end 68 of
screw 70. Screw 70 is mounted to amplitude modulation assembly 72. Amplitude modulation
assembly 72 includes amplitude modulation motor 74, nut 76, mounted on nut frame 78,
which swivels on rotation bearing 80 mounted to rigid base 32. The axis of rotation
of nut frame 78 on rotation bearing 80 is, like that of eccentric drive plate 64,
normal to a major plane of rigid base 32. Actuation of amplitude modulation assembly
72 causes movement of screw 70 along its major longitudinal axis to thereby cause
rod end 68 to become more proximate or less proximate to amplitude modulation assembly
72. Arm 82 extends from an end of screw 70 opposite to rod end 68 to elastic actuator
catch bracket 84, which is mounted on base 18 of main moving platform 16. Arm 82 extends
through an opening defined by elastic actuator catch bracket 84 and is linked to main
moving platform 16 by springs 86, 88 held in place on either side of elastic actuator
catch bracket 84 by nuts 90, 92, respectively.
[0040] Actuation of actuation assembly drive motor 60 causes rotation of eccentric drive
plate 64 about an axis normal to a major plane of rigid base 32 which, in turn, causes
reciprocal motion of swing arm plate 66 roughly along a major longitudinal axis of
swing arm plate 66. Such reciprocal motion of swing arm plate 66 causes rod end 68
to move in a reciprocal motion from side-to-side of a major longitudinal axis of screw
70 which causes reciprocal rotation of nut frame 80 about an axis normal to major
plane rigid base 18 and side-to-side motion of the opposite end of screw 70 opposite
that of rod end 68 of screw 70. Such side-to-side movements of the opposite end of
screw 70 causes reciprocal longitudinal movement of arm 82 extending through the opening
defined by elastic actuator catch bracket 84.
[0041] Resistance to such reciprocal motion of arm 82 causes alternating reciprocal compression
and relaxation of springs 86, 88, which thereby causes reciprocal motion of main moving
platform 16 about main support shaft 40 linking main moving platform 16 to rigid base
32.
[0042] The amplitude of reciprocal motion of main moving platform 16 about main support
shaft 40 is controlled by the location of screw 70 relative to amplitude modulation
assembly 72. For example, if actuation of amplitude modulation assembly 70 causes
rod end 68 to become more proximate to amplitude modulation assembly 70, the side-to-side
motion of the opposite end of screw 70 will become greater, thereby causing the amplification
of reciprocal motion of main moving platform 16 about main support shaft 40 to increase.
Conversely, actuation of amplitude modulation assembly 72 to cause rod end 68 of screw
70 to become more remote from amplitude modulation assembly 72 will diminish the side-to-side
motion of opposite end of screw 70, thereby reducing the amplitude of reciprocal motion
of main moving platform 16 about main support shaft 40.
[0043] Reciprocal motion of main moving platform 16 may cause a delayed reciprocal motion
of moving head platform 44 about head rotation bearing 46. The reciprocal motion of
moving head platform 44, although delayed, may have greater amplitude about main support
shaft 40 because of the rotation of moving head platform 44 about head rotation bearing
46. However, the amplitude of reciprocal motion of moving head platform 44 about head
rotation bearing 46 may be dampened by springs 56.
[0044] Nevertheless, the reciprocal motion of main moving platform 16 and moving head platform
44 about main support shaft 40 is measured by motion sensing device 50 at moving head
platform 44. Measurements by motion sensing device 50 are relayed back to control
panel 34 and rigid base control electronics 36 which, alone, or optionally, in combination
with external computer software programming, modulate actuator assembly drive motor
60 and amplitude modulation motor 74. Motion detection by motion sensing device 50
can also, optionally, modulate computer programming to affect selection and volume
of sounds emitted by speakers 52. Microphones 38, in addition, or optionally, receive
acoustical signals that can be fed back through rigid base control electronics 36
or/and control panel 34 to software, either on-board or remote from infant calming/sleep-aid
device 10, that further modulates actuator assembly drive motor 60, amplitude modulation
motor 74 and/or sounds emitted from speakers 52. Various control algorithms associated
with modulation of actuator assembly drive motor 60, amplitude modulation motor 74
and speakers 52 will be more fully discussed below.
[0045] In one embodiment, the device allows for a reciprocating motion at 0.5-1.5 cycles
per second (cps) of -5.08cm (2") excursions, but if the baby is fussy the device responds
by delivering a smaller excursion (e.g.<3.30cm (1.3")) at a faster rate (-2-4.5 cps).
This fast and small motion delivers the specific degree of rapid acceleration-deceleration
force to the semicircular canals in the vestibular mechanism of the inner ear that
is required to activate the calming reflex.
[0046] Also, the reciprocating motion typically has a maximum amplitude of less than 3.30cm
(1.3 inches) during the rapid phase of motion (-2-4.5 cps), further ensuring safety
of the infant.
[0047] In one embodiment, the biometric sensor monitors the infant and generates a signal
indicative of a respiration status or a cardiovascular status of the infant, such
as to detect when the baby has paused breathing for a predetermined period or time,
or has a cardiovascular collapse, such as indicated by a heart rate below a predetermined
threshold, or the like. The sensor signal can be fed back through rigid base control
electronics 36 or/and control panel 34 to a control system such as software, either
on-board or remote from infant calming/sleep-aid device 10. The control system may
receive and analyze the signal to determine whether a distressed status of the infant
exists, and further may act, such as to generate an output to control modulation of
the actuator assembly drive motor 60, amplitude modulation motor 74, or generate a
telephone call to emergency services via Wi-Fi connection, and/or generate alerting
and stimulating sounds that may be emitted from speakers 52. An alarm can be directed
to the infant's caretakers as well.
[0048] In some embodiments, in response to detection of infant distress, both vigorous motion
of the platform and a loud sound can be provided. For example, providing motion of
the platform at a frequency greater than .5 Hz and an amplitude that is greater than
2.54cm (1 inch), along with sound having an intensity of at least 65 dB, may provide
appropriate stimulation of the infant. Of course, other amounts of stimulation are
also envisioned.
[0049] FIG. 6A illustrates an exemplary and non-limiting embodiment of a drive motor 60.
Drive motor 60 may include motor case 600, motor 602, motor gear 604, motor case bottom
604, release button 606, button springs 616, screw 608, contact pin 610, metal plate
612, and the like. Motor case 600 may be made from an acrylonitrile butadiene styrene
(ABS) plastic and the like. Motor 602 may be a 12V 300 RPM motor and the like. Motor
gear may be made from polyoxymethylene (POM) plastic and the like. Motor case bottom
604 may be made from ABS plastic and the like. Release button 606 may be made from
ABS plastic and the like. Button spring 616 may be made from stainless steel and the
like. Screw 608 may be M3 HEX flat head 15mm long screw, made from stainless steel,
and the like. Contact pin 610 may be made from stainless steel and the like. Metal
plate 612 may be made from stainless steel and the like.
[0050] FIG. 6B illustrates the drive motor location 614 of the drive motor 60 in an embodiment
of the infant calming/sleep-aid device 2258. FIG. 6C illustrates a cross sectional
view of an embodiment of the infant calming device/sleep-aid device showing the drive
motor.
[0051] In another embodiment, shown in FIGS. 7 through 9 calming/sleep-aid device 100 includes
actuator assembly 102, which substitutes for actuator assembly 58 of the embodiment
shown in FIGS. 2 through 6. Specifically, as shown in FIGS. 7 through 9, drive motor
104 of calming/sleep-aid device 100 is linked to bearing 106, which is, in turn, leads
to the eccentric drive plate 108. Eccentric drive plate 108 is connected to push/pull
rod 110 that extends through an opening defined by elastic actuator catch bracket
112. Springs 114 about push/pull rod 110 link push/pull rod 110 to main moving platform
16 through elastic actuator catch bracket 112. Springs 114 are series elastic actuator
push-springs; they transfer force from actuator assembly 102 to catch bracket 112.
Balancing dampers 115 beneath push/pull rod 110 dampen the motion of moving platform
16. Springs 117 are pull-balancing springs; they pull on bracket 112 in parallel with
balancing dampers 115 to create the desired smooth sinusoidal motion of moving platform
16 at low frequencies and the more square wave, rapid accelerating/decelerating motion
at high frequencies. Injection-molded plastic features that are parts of the main
moving platform 16 may be used to create the desired smooth sinusoidal motion of main
moving platform 16 at low frequencies and the rapid accelerating/decelerating motion
at high frequencies.
[0052] Actuation of drive motor 104 causes reciprocal longitudinal movement of push/pull
rod 110 through the opening defined by elastic actuator catch bracket 112 and translates
that reciprocal movement into reciprocal motion of main moving platform 16 about main
rotation bearing 42, as does reciprocal motion of arm 82 through elastic actuator
catch bracket 84 of the embodiment shown in FIGS. 2 through 6. Other components of
the embodiments shown in FIGS. 7 through 9 operate in the same manner as those of
infant calming/sleep-aid device 10 represented in FIGS. 2 through 6.
[0053] As shown FIG. 10, software control system 120 receives various inputs from a variety
of sensors or control input devices representing desired settings or the like and,
based on one or more of these inputs, acts to control one or more of various devices,
such as to control sound, motion, and/or lights of the sleep aid device, or to initiate
an emergency call or alarm. As shown, the control system 120 processes inputs from
microphones 125 (also represented as microphones 19 in FIG. 2), from speed control
knob 121 (also shown as element 35 in FIG. 2), and from a three-axis USB accelerometer
123 (represented as motion sensing device 50 in FIG. 3), and from a biometric sensor
1002, such as a wireless sensor for detecting one or more of cardiac and respiratory
status. Control system 120 generates one or more output signals, such as to control
speakers 131 (speakers 52 as shown in FIG. 3), and to multichannel USB motor controller
122, which controls actuator assembly drive motor (such as drive motor 60 shown in
FIG. 3) and amplitude modulation motor (motor 73 of FIG. 3 or drive motor 104 of FIG.
7-9). Status lights, such as tricolor USB DEs 121 (or lights 37 such as shown in FIG.
3) can also be controlled. Logic or control modules of software control system 120
can be located on-board or remotely from the embodiments of infant calming/sleep-aid
devices 10, 100 shown in FIGS. 2 through 9. The modules may include a crying detection
module 124 that receives data from microphones 125, and relays to a behavior state
machine module 126 whether or not an infant on infant calming/sleep-aid device is
crying or not crying. Microphones 125 may be mounted on the infant calming/sleep-aid
device, integrated into the infant calming/sleep-aid device, included in a sensor
that is placed on or attached to the infant, and the like. Biometric sensor module
1002 may relay one or more of an infant's physiologic parameters (e.g., breathing
status, temperature, motion status, etc.) to the behavior state module 126, or depending
on the signal provided by the sensor, directly to a Wi-Fi control Module 1004. Depending
upon the input received by behavior state machine module 126, output signals will
control motion generation module 128 or audio generation module 130 or a Wi-Fi phone
connection module 1004. Alternatively, or in addition, output signals from behavior
state machine module 126 will modulate generation of audio data output from audio
generation module 130 to speakers 131, represented as speakers 52 in FIGS. 2 through
9.
[0054] Motion generation module 128 receives input from speed control knob 121 and information
regarding motion of the device 10, 100 from motion analysis module 132. Actuation
of motion generation module 128 will modulate the actuator assemblies of the embodiments
shown in FIGS. 2 through 9.
[0055] Data received from accelerometer 123 is processed by motion analysis module 132 to
thereby modulate the actuator assembly through motion generation module 128 and/or
audio generation module 130 to thereby control the actuators assemblies or speakers,
respectively. In addition, motion analysis module 132 controls status light module
134 to alert, through the status lights, whether motions of the main moving platform
and the head platform are nominal or not nominal, or alternatively, through feedback,
soothing or not soothing to the infant. "Nominal", as that term is defined herein,
refers to any and all motion for which the filtered acceleration signal does not exceed
a specified, or predetermined maximum motion threshold for a specific length of time.
The process by which the motion analysis module classifies motion as nominal or not
nominal is detailed in FIG. 12 and in the accompanying text below.
[0056] In one embodiment, the rate of the reciprocating rotation is controlled to be within
a range of between about one and about four and one-half cycles per second (cps) and
with an amplitude of the reciprocating motion at a center of a head of the infant
of between about 0.51cm (2 inches) and about 3.30cm (1.3 inches). In another embodiment,
the rate of reciprocating motion is within a range of between about 0.5 and about
1.5 cycles per second and an amplitude of the reciprocating rotation at a center of
the head of the infant is in a range of between about 0.64cm (0.25 inches) and about
5.08cm (2.0 inches). In differing embodiments, this motion may be parallel to, or
orthogonal to the platform supporting the infant's body and head.
[0057] In embodiments, the control system 120 may operate in a manner wherein the intensity
of maximum stimulation is increased over the course of the first weeks and subsequently
weans the infant off the device's motion by incorporating the infant age as a variable
used in the behavior state module 126. For example, modulation of motion and/or sound
may be further controlled by at least one of the weight of the infant, the age of
the infant, and the duration of the detected sounds made by the infant.
[0058] Referring to FIG. 11, crying detection module 124 receives audio data from the microphones
of infant calming/sleep-aid devices 10, 100, which is processed through a digital
band-pass filter 136 to generate filtered audio data. Energy-based threshold 138 receives
filtered audio data to determine whether the audio energy is over threshold or under
threshold. Time-based filter 140 receives data from energy-based threshold 138 to
provide an indication as to whether the infant is crying or not crying. The information,
as discussed above with respect to software control system 120 (FIG. 10), is received
from crying detection module 124 by behavior state machine module 126 that will then
provide signals to control motion generation module 128 or audio generation module
130 or both.
[0059] Motion analysis module 132, shown and represented in more detail in FIG.12, receives
a signal from the motion-sensing device of infant calming/sleep-aid devices 10, 100,
at digital filter bank 142. Digital filter bank 142 filters the signal to generate
a filtered motion amplitude estimate that is used as input to motion generation module
128 (FIG. 10). In addition, the filtered motion amplitude estimate passes through
a range check 144 to determine whether the motion is within a soothing or known soothing
range, which is provided to time-based filter 146 and provides an indication as to
whether a motion is soothing or not soothing to motion generation module 128 (FIG.
10).
[0060] Filtered motion sensor, or accelerometer, data from digital filter bank 142 also
passes through threshold crossing-based motion frequency estimator 148 to provide
an estimate of motion frequency, which is provides to motion generation module 128.
[0061] Outputted data from threshold-crossing-based motion frequency estimator 148 also
passes through range check 144 for indicating whether the motion is or is not soothing,
[0062] Filtered accelerometer data from digital filter bank 142 also is processed to determine
whether or not the acceleration exceeds a specific maximum motion threshold 150 and,
depending on the result, processes that data through time-based filter 152 to provide
an indication as to whether the motion is nominal or not nominal. This indication
as to whether the motion is nominal or not nominal is used as input to motion generation
module 128 (FIG. 10), and is additionally used to control status lights 37 (FIG. 2)
via status light module 134 (FIG. 10).
[0063] As can be seen in FIG. 13, behavior state machine module 126 receives information
from crying detection module 124 (FIG. 11) as to whether the infant is in a state
of crying or not crying. This information is used by the state machine's state transition
rules 156 to select an active state from a library of states 154, thereby outputting
a desired motion state, a desired audio track and/or desired volume/equalizer settings
to audio generation module 130 of FIG. 10.
[0064] As can be seen in FIG. 13a, behavior state machine module 126 receives information
from biometric sensor module 1002 (FIG. 10) as to whether a biometric measure is normal
or not normal. One possible biometric measure may be normal if an infant is breathing,
not normal if an infant is not breathing, and the like. This information is used by
the state machine's state transition rules 156 to select an active state from a library
of states 154, thereby outputting a desired motion state, a desired audio track and/or
desired volume/equalizer settings, a desired phone call state, and the like to audio
generation module 130 (FIG. 10). Desired alarm state may be a parent alarm state and
the like. Desired audio track may be a special vigorous white noise track and the
like. Desired phone call state may be initiate Wi-Fi phone call to emergency services
and the like.
[0065] Audio generation module 130, represented in FIG. 14, receives signals of a desired
audio track and desired volume/equalizer settings from behavior state machine module
126 (FIG. 10) and signals of motion analysis, specifically, whether the motion is
nominal or not nominal, from motion analysis module 132 (FIG. 10). Desired audio track
may be a sound audio track, music audio track, special vigorous white sound audio
track, and the like. Audio generation module 130 includes a special vigorous white
noise audio track 161, a library of "soothing" audio tracks 160, a digital equalizer/volume
control 162 and alarm sound 164. Upon receipt of a new command from motion analysis
module 132 (FIG. 10), audio generation module 130 will cross-fade to a desired audio
track and volume, and crossfade to desired equalizer settings. If the motion is not
nominal, then an alarm signal may be output to override the audio signal with an alarm.
The audio signal from the audio generation module 130 (FIG. 10) is output to the USB
speakers 131 (FIG. 10) of infant calming/sleep-aid device 10, 100.
[0066] At baseline, the audio generator will produce an output of a low-pitch, rumbling
sound at about 65 dB to 74 dB. Upon receipt of a new command from crying detection
module 124 (FIG. 11), audio generation module 130 will cross-fade to a more high pitched
audio track and louder volume, at about 75 dB to 95 dB.
[0067] Upon receipt of a new command from behavior state module 126 (FIG. 10), audio generation
module 130 will cross-fade to a desired audio track and volume, and crossfade to desired
equalizer settings. If the signal received from the behavior state module 126 is indicative
of an abnormal biometric signal that has been detected by the biometric sensor 1002
(FIG. 10), for example that an infant is not breathing, then an alarm signal and special
vigorous white sound audio track will be output to override the audio signal with
an alarm and special vigorous white sound audio track. The special vigorous white
sound audio track signal from the audio generation module 130 (FIG. 10) is output
to the USB speakers 131 (FIG. 10) of infant calming/sleep-aid device 10, 100.
[0068] Audio generation module 130 (FIG. 14) receives signals from the biometric sensor
module 1002 (FIG. 10). An abnormal reading, such as a reading indicating that an infant
is not breathing, will activate a desired audio track, such as a special vigorous
white sound audio track, parent alarm and desired volume/equalizer settings. Upon
receipt of a new command from biometric sensor module 1002 (FIG. 10), audio generation
module 130 will cross-fade to a desired audio track and volume, and crossfade to desired
equalizer settings.
[0069] Audio generation module 130 (FIG. 14) may receive mild signals that indicate an infant
is awakening. Mild signals may detect that an infant is mildly awakened. Mild signals
may be mild motion signals, mild sound signals, and the like. Mild signals may be
sent from a sensor attached to or worn by an infant. Mild signals may be detected
from an infant before the infant begins to cry. Audio generation module 130 (FIG.
14) may begin to increase sound levels when mild signals are received.
[0070] Two variations of motion generation module are represented in FIGS. 15 and 16. In
the first embodiment of motion generation module 128, shown in FIG. 10, motion generation
module 128 receives a desired motion state input from behavior state machine module
126 (FIG. 10), a motion frequency/amplitude signal from motion analysis module 132
(FIG. 10), a desired system speed signal from speed control knob 121 (FIG. 10), and
a signal as to whether a motion is nominal or is not nominal. The "desired system
speed" is the setting of speed control knob 121, whereby the operator can select or
limit the motions allowed by infant calming/sleep-aid device 10, 100. The desired
motion state signal goes to lookup within motion generation module 128, which outputs
a reference motor command based on a desired motion state. If the currently active
motor commands are close to the reference motor commands, then the motor commands
are actively adjusted within an allowable envelope via a gradient ascent based on
observed motion frequency and amplitude. If the current motor commands are not close
to the reference motor commands, then the motion generation module will set desired
motor commands via path planning in a motor command space. "Path planning" transitions
motor settings to desired motor settings by inserting intermediate motor settings
as necessitated by nest dynamics to ensure that motion stays in a desirable range
during transition. If the desired system speed is less than "full," then a signal
is sent to adjust the desired motor commands in proportion to the desired system speed.
"Full" is the fully-on position of the knob, and means that infant calming/sleep-aid
device 10, 100 is not being limited by this knob and is allowed to perform all of
the motions it determines to be relevant. If speed control knob 121 is turned down
from "full," motions of infant calming/sleep-aid device 10, 100 start to become constrained,
so speed control knob 121 acts as an operator to override the normal motion behavior
of infant calming/sleep-aid device 10, 100. If not, then a comparison is made as to
whether the observed motion is nominal. If it is not, then motor output is disabled.
If it is nominal, then an output signal of desired motor commands is given to target
motor positions and speeds of the actuator of the multichannel USB motor controller.
In some embodiments, sound is delivered to an infant but not motion if an infant is
in the device but not securely attached. The level of motion and or sound output may
also be modified by the parents' choice of a special boost function.
[0071] In an alternative embodiment of motion generation module 128, shown in FIG. 16, there
is no receipt by the module of signals related to motion frequency and amplitude.
Therefore, it is only necessary to set desired motor commands by interpolating from
a current command based on a look up table of motor commands based on a desired motion
state in response to receiving a signal with respect to the desired motion state.
All of the other components of motion generation are the same as represented in FIG.
15.
[0072] In one embodiment, the motion generation module 128 receives a motion state input
of an abnormal signal, for example that an infant is not breathing, from the biometric
sensor module 1002 (FIG. 10). The resultant programmed vigorous motion may continue
until the abnormal biometric signal is discontinued, for example when an infant begins
breathing again, or the device is shut off.
[0073] Another exemplary embodiment of an infant calming device is shown in FIGS. 17-21.
In this example, the infant calming device includes a main moving platform with an
integral head support portion, that is, the head support portion is contiguous with
and rigidly fixed to the main moving platform, in essence creating a single platform
supporting the head and body of the infant.
[0074] An enclosure 1702 for an infant calming device using a single main moving platform
is shown in FIG. 17. Single main moving platform 2102 and rigid base 2114 of this
device are shown in FIGS. 18 and 19, where FIG. 19 also shows the other components
of the device, as seen looking through main moving platform 2102. FIG. 20 shows cross
sectional views of the embodiment of an infant calming device using a single main
moving platform.
[0075] As shown in FIG. 21, main moving platform 2102 is supported by main support shaft
at main rotation bearing 2106. The main rotation bearing 2106 may be comprised of
several vertical pieces of plastic or spring steel that do the job of supporting the
upper surface, while also flexing to replace the springs and dampers described above.
[0076] Motion sensing device 2108, such as an accelerometer, underneath main platform 2102
detects motion of main platform 2102. Microphones (not shown) detect sound emitted
by the infant (not shown) when supported by infant aid sleep device. Speakers 2110,
supported by brackets 2112 mounted on rigid base 2114, may be located directly beneath
head position of infant on main moving platform 2102. Secure sleep sack fastening
clips may be attached to main moving platform 2102 for securing an infant in suitable
swaddling clothes.
[0077] The exemplary embodiment shown in FIGS. 17-21 operates similarly to the embodiment
shown in FIGS. 1-16, described above. The embodiment in FIGS. 17-21 differs from that
shown in FIGS. 1-16 in that the separate head and body boards are replaced by a single
moving board. Along with the replacement of the separate head and body boards by a
single moving board, the secure sleep sack fastening straps are replaced by clips
integral to the baby swaddle wrap. The head rotation bearing, rotating head platform,
head board support U bracket, head balancing extension spring, and weight sensors
are also absent.
[0078] In embodiments, the main moving platform 16, 2102 may hang from the framing that
is above the main moving platform via fabric and/or cables. The main moving platform
16, 2102 would then be free to rotate or swing as needed. A motor and offset wheel
would deliver the needed input to create the desired motion, such as a smooth sinusoidal
motion of the main moving platform at low frequencies and the rapid accelerating motion
at high frequencies.
[0079] As discussed above, two versions of the infant calming/sleep-aid device are shown
in FIGS. 2 through 9, with microphones to detect infant crying, motion and sound actuators,
a swaddling system to keep the baby in optimal position and a gel pad to reduce the
pressure on the back of the skull (thereby avoiding possible plagiocephaly). The device
also may contain a logic board to accomplish two tasks; delivering staged interventions
of specially engineered sound and delivering motion created by two linked platforms
attached to a motor and rod actuator (as well as a series of springs and dampeners
to modulate the activity.) These platforms may act in a reciprocating manner about
an axis that intersects the infant and is orthogonal to a major plane of the surface
supporting the infant to provide a motion that varies from slow smooth rocking (0.5-1.5
cps) to keep babies calm- and promote sleep, and ramping up to a faster, smaller,
jiggling motion (2-4.5 cps) with a more spiked waveform to deliver a sufficiently
abrupt acceleration-deceleration action to stimulate the vestibular mechanism of the
inner ear, trigger a calming reflex and soothe the baby, such as when the baby cries
(e.g, head rocking back and forth in excursions of less than Γ). The sound in the
device may be adapted to respond to the baby's upset by starting a specially engineered
high pitched sound, then stepping down to quieter, lower pitched white noise over
several minutes. A wide variety of sound patterns may be enabled. The device may be
adapted to gradually increase the intensity of the sound and/or motion during the
early weeks of life and to gradually reduce (i.e. wean) the intensity of the sound
and/or motion over a suitable time period, such as several weeks or several months
later in infancy.
[0080] Another exemplary embodiment of an infant calming/sleep-aid device is shown in FIGS.
22 through 27.
[0081] As shown in FIG. 22, infant calming/sleep-aid device 2258 may include various control
system related components including a software control system 2216 for receiving and
processing inputs 2200 and generating outputs 2246, a user interface 2204, and a communication
facility 2214. Components of the software control system and the user interface can
be located on-board or remotely from the enclosure/platform portion of infant calming/sleep-aid
device 2258. Inputs 2200 may include data or control signals from various types of
sensors or devices such as microphone or sound sensor 2202, motion control sensor
2206, accelerometer or motion sensor 2208, user interface 2204, biometric sensor,
and the like. Outputs from the control system 2216 are directed to devices such as
speakers 2248 for controlling the generation of sound, motion controller 2250 for
controlling the motion of a platform or structure on which the infant is placed, Wi-Fi
phone call to emergency services, and status light facility 2252 for controlling illumination
of various status lights.
[0082] Other inputs may also be provided by other sensors such as visual sensors, including
cameras, pressure sensors, sensors located in a swaddle or sleep sack, third party
sensors, including monitors, sensors embedded in fabrics, and the like. Sensors embedded
in fabrics may be flexible sensors. Sensors may be used for detecting child physiological
parameters. Sensors may be used to provide inputs and feedback for mode selection
for a mechanism that activates the calming reflex of an infant or, in certain circumstances,
increases a baby's arousal. Microphone or sound sensor 2202 may be in communication
with user interface 2204. Motion control sensor 2206 may be controlled by user interface
2204. Motion control sensor 2206 may be in communication with motion generation module
2232. Motion control sensor 2206 may send desired system speed input 2220 to motion
generation module 2232.
[0083] User interface 2204 may be in communication with inputs such as microphone or sound
sensors 2202, crying detection module 2218, motion analysis module 2222, accelerometer
or motion sensor 2208, and the like. User interface 2204 may allow a user to input
data such as the date of birth of an infant, the due date of an infant, the name of
the infant, the weight of the infant, and the like. The weight of the infant may be
input manually or automatically. The weight of the infant may be input automatically
from a scale that is integrated with the infant calming/sleep-aid device 2258. The
user interface 2204 may be used to provide a diary. The diary may be a sleep diary,
cry diary, and the like. The user interface 2204 may be used to boost baseline stimulation
by providing more motion and sound. For example, an extra fast and/or strong sound
could be provided for infants that are difficult to calm. This extra fast and/or strong
sound could be called Intervention4. Intervention4 may only be able to be activated
two consecutive times, until the device is reset. Intervention4 may be limited to
about two minutes of operation. The infant calming/sleep aid device may turn off after
Intervention4 has been operating for about two minutes.
[0084] User interface 2204 may be an integral part of the infant calming/sleep-aid device
2258, or a separate piece, such as on a mobile peripheral device, which may be connected
by a wired connection, a wireless connection, and the like to the infant calming/sleep
aid device 2258. The wireless connection may be a Wi-Fi connection, Bluetooth connection,
and the like.
[0085] The user interface 2204 may have controls, set-up information input, and other input
data that can be sent to the software control system of the device. Controls may include
an on/off control, sound control, motion control, light control, and the like. Controls
may be enabled or disabled. Motion control may have an extension option that automatically
extends the sound, extends the basic motion of the device, and the like. The option
that extends the basic motion of the device may be used after an infant is older than
four months. Light control may have a dim option, be used to turn and LED alarm light
on or off, and the like.
[0086] The user interface 2204 may allow a user to input set-up information, other information,
and the like. Set-up information may include due date, birthdate, name, nickname,
date/time setup, and the like. Other input information may include information related
to shots the infant has had, feedings, travel, dirty diapers, and the like.
[0087] The user interface 2204 may provide various functions, such as Session, Session 'Super',
History, Profile, Settings, Customization, Journaling and the like. Session may include
start/stop session, track session duration, track cry and sleep duration, track mode
position, session summary, period summary, track epic position, contextual and expert
tips messaging, alert messaging, AM/PM model, night light, and the like. Period summary
may be for a 12 hour clock or 24 hour clock setup. Session 'Super" may include track
mode position, track mode duration, volume control, editable mode position, and the
like. History may include compare periods, display AM vs. PM sessions, share data
and epic position via email and social, add sleep note to session, add weight note
to session, and the like. Compare periods may compare periods over a 12 hour period,
a 24 hour period, and the like. Profile may include name/nickname, due date, birth
date, and the like. Settings may include overview, getting started, sleep library,
level 4 on/off, notifications, push start, milestones, sleep facts, social network
setup, sync on/off, and the like. Customization may include editable session data,
manual entry, sound on/off, customize sound, customize mode, show weight in profile,
allow weight input via external API, light control, and the like. Overview may include
content from Epic Education, and the like. Getting Started may include content from
First Use Coaching, and the like. Sleep library may include content from eBooks, and
the like.
[0088] The user interface 2204 may provide cloud based functions. Cloud based functions
may include account management, the ability to invite other account holders to manage
profile, add friends, compare session data with friends, anonymously post to world
data, compare session/period/epic with world data, social commenting, web view of
data, and the like.
[0089] FIGS. 26a-26d illustrate a user interface 2204 in exemplary and non-limiting embodiments.
FIG. 26a illustrates layers of the user interface 2204. Layers include the shape which
represents the top view of the infant calming/sleep-aid device 2258. Layers may also
include icons. Icons may include a baby icon, a baseline indicator icon, and the like.
Icons may be placed at the center of the display. Layers may include views. Views
may include before session 2600, during session 2602, end of session 2604, history
2606, and the like. Before session 2600 may include a center dot that represents the
child. The center dot may be color coded with color codes. Color codes may include
purple for pause, yellow for fuss, cyan for sleeping, and the like. During session
2602 may include a ring. A ring may represent levels of wiggle/sound. Center may be
baseline. Color may move out as intensity increases. End of session 2604 may include
color. Color may represent an average of the levels of wiggle/sound used during the
session. History may show duration of sleep and fuss as a line chart.
[0090] FIG. 26b illustrates sliders of the user interface. Sliders may include a focus on
the current state of the infant calming/sleep-aid device 2258. Sliders may include
a marker. The marker may indicate the current level of motion and sound of the infant
calming/sleep-aid device 2258. Sliders may include views. Views may include session
start 2608, during session 2610, end of session 2612, history 2606, and the like.
Session start 2608 may include a marker that represents the infant calming/sleep-aid
device 2258. The marker may be color coded with color codes. Color codes may include
purple for pause, green for high intervention, cyan for baseline, and the like. During
session 2610 may include a marker. The color and position of the marker may show intervention
levels. During session 2610 may include a notch. The notch may indicate the baby.
The notch may be color coded with color codes. Color codes may be yellow to indicate
fuss, cyan to indicate sleeping, and the like. End of session 2612 may be a heat map
that represents an average of the intervention levels used during the session.
[0091] FIG. 26c illustrates blossoms of the user interface. Blossoms may include an icon
for the infant at the center of the experience while different intervention levels
of the infant calming/sleep-aid device 2258 are shown in a trajectory around it. Blossoms
may include views. Views may include session start 2616, during session 2618, end
of session 2620, history 2606, and the like. Session start 2608 may include a center
dot that represents the infant. The dot may be color coded with color codes. Color
codes may include purple for pause, yellow for fuss, cyan for sleeping, and the like.
During session 2618 may include petals. Each petal may represent levels of motion
and sound. The bottom petal may be baseline, the top petal may be the highest level
of intensity, and the like. End of session 2620 may include a heat map. The heat map
may represent an average of the levels of motion and sound used during the session.
[0092] FIG. 26d illustrates additional views of the user interface. Additional views may
include menu/profile 2624, session 2626, end of session 2628, session control 2630,
session tip 2632, setup 2634, overview 2636, history 2638, history zoom 2640, history
compare 2644, history filter, 2646, history tag 2648, and the like. A user may move
from one screen to the next, such as by swiping, such that a user may swipe to see
a day view, swipe again to see a week view, etc.
[0093] FIG. 27 illustrates additional views of a user interface of a mobile device for use
with the infant calming/sleep aid device.
[0094] User interface 2204 may be provided as a mobile application. The mobile application
may provide data inputs to the control mechanism of the infant calming/sleep aid device
2258. Data may include monitoring data, feedback data, control data, reporting data,
analytics data, and the like. The mobile application may be installed on a mobile
device. The device may be a smartphone, tablet computer, and the like. The mobile
device may have an operating system that may be iOS, Android, and the like. The mobile
application may enable interactions with the device. Interactions may be enabled through
a communication interface. The communication interface may be a universal serial bus
(USB) interface, Wi-Fi interface, Bluetooth interface, and the like. Interactions
may be control interactions. Control interactions may be similar to the interactions
that may be enabled directly from the infant calming/sleep aid device 2258, only available
on the mobile application, and the like. Examples of control interactions may include
the ability to turn on Intervention4 using four fast taps of the on/off button within
two seconds, turn on/off the infant calming/sleep aid device 2258 by pressing and
holding the on/off button for three seconds, and the like.
[0095] Other mobile device interactions may include reports and statistics, sharing and
group interactions, benchmarking and comparison interactions, graphic interactions,
acoustic signature of a cry interactions, data upload to a third party interactions,
feedback from a subject matter expert interactions, warning alert interactions, overtone
customization of white noise interactions, other input interactions, journal sharing/printout
interactions, weight interactions, breastfeeding interactions, camera interactions,
and the like. Other input interactions may include photo input interactions, video
input interactions, audio input interactions, and the like.
[0096] Additional inputs may include information inputs. Information inputs may include
baby weights, baby lengths, baby circumferences, frequencies, travel, immunizations,
illness, heart rate, respiratory rate, blood oxygenation, and the like. Baby weights
may include weight at birth, baby weights at different weighings, and the like. Baby
length may include baby length at birth, baby length at different measurings, and
the like. Baby circumference may include baby circumference of the head at birth,
baby circumference of the head at different measurings, and the like. Frequencies
may include frequency of feeding, frequency of diaper changes/pee or poop, and the
like. Information inputs may be added to a mobile device journal.
[0097] Microphone or sound sensor 2202 may send audio data 2210 to crying detection module
2218. Accelerometer or motion sensor 2208 may send motion data 2212 to motion analysis
module 2222. Communication facility 2214 may be used to establish communication between
inputs 2200 and software control system 2216. Communication may be established via
direct control, remote control, and the like. Direct control may include providing
control inputs to the communication facility from input devices directly integrated
with the infant calming/sleep-aid device 2258. Remote control may include providing
control inputs to the communication facility from input devices remotely connected
to the infant calming/sleep-aid device 2258. Remote connectivity may include wired
and wireless connectivity. Wireless connectivity may include Wi-Fi connectivity, Bluetooth
connectivity, and the like. Journaling may include track feedings, track diapers,
and the like.
[0098] Software control system 2216 may include modules. Modules may include crying detection
module 2218, behavior state module 2230, biometric detection module, audio generation
module 2238, motion generation module 2232, motion analysis module 2222, status light
module 2234, and the like. Crying detection module may be in communication with microphone
or sound sensor 2202, motion control sensor 2206, behavior state module 2230, and
the like. Crying detection module 2218 may send an infant crying/not crying status
input 2224 to behavior state module 2230. Biometric detection module may be in communication
with motion generation module 2232, audio generation module 2238, and the like. Biometric
detection module may send desired motion state input 2260 to motion generation module
2232, desired audio track, desired volume/equalizer settings input 2236 to audio generation
module 2238, and the like. Behavior state module 2230 may be in communication with
crying detection module 2218, motion generation module 2232, audio generation module
2238, and the like. Behavior state module may send desired motion state input 2260
to motion generation module 2232, desired audio track, desired volume/equalizer settings
input 2236 to audio generation module 2238, and the like. Motion generation module
2232 may be in communication with behavior state module 2230, motion control sensor
2206, user interface 2204, motion analysis module 2222, motion controller 2250, and
the like. Motion analysis module 2222 may be in communication with accelerometer or
motion sensor 2203, user interface 2204, motion generation module 2232, status light
module 2234, and the like. Motion analysis module 222 may send motion frequency/amplitude
and motion is safe/is not safe input 2226 to motion generation module 2232. Motion
analysis module 2222 may send motion is safe/not safe input and motion is soothing/is
not soothing input 2228 to status light module 2234. Motion generation module may
send target motor positions/speeds input to motion controller 2250 and the like. Audio
generation module 138 may be in communication with behavior state module 2230 speaker
2248, and the like. Audio generation module 2238 may send audio generation module
input to speaker 2238. Status light module 2234 may be in communication with motion
analysis module 2222 status lights color display facility 2252 and the like. Status
light module 2234 may send target status light colors input 2244 to status lights
color display facility 2252 and the like.
[0099] Software control system 2216 may also be in communication with data storage facility
2254, rules engine 2256, and the like. Data storage facility 2254 may store information
that may be accessed by other modules of the software control system, and the like.
Rules engine 2256 may provide rules for inputs and triggers to a mechanism to activate
the "calming reflex" of an infant.
[0100] FIGS. 23a and 23b illustrate the infant calming/sleep aid device 2258 in exemplary
and non-limiting embodiments. FIG. 23a is a partially cut-away perspective view of
the infant calming/sleep aid device 2258. FIG. 23b is an exploded perspective view
that illustrates components of the infant calming/sleep aid device 2258. Components
of the infant calming/sleep aid device 2258 may include outer fabric 2300, structure
2302, inner fabric/mattress cover 2304, mattress 2306, lower wall 2308, veneer/felt
cosmetic layer 2310, stand 2312, and foot pad/wheel 2314. The height of the infant
calming/sleep aid device 2258 may be adjustable. FIGS. 23c and 23d are perspective
views of the infant calming/sleep aid device 2258 in a low position 2316 and in a
high position 2318. FIG. 23e illustrates a bottom view of the infant calming/sleep
aid device 2258 with legs attached to the bottom of the infant calming/sleep aid device
2258. FIGS. 23f-23h illustrate leg connectors 2322 used to attach the legs 2258 to
the infant calming/sleep aid device 2258. The legs may be unsnapped and reversed to
allow a high or low position of the platform/structure on which the infant is secured.
[0101] Infant calming/sleep aid device 2258 may provide a mechanism to activate the calming
reflex of an infant, such as via the control system described with respect to FIG.
22. The mechanism may use stereotypical sensory input, stereotypical behavioral output,
and the like to trigger the calming reflex. The activation mechanism may be programmed
to wane after 3-5 months or the like. The mechanism may exhibit threshold variations
that vary between higher and lower thresholds based on the individual infant. The
mechanism may vary by biometric evaluation or state of the infant and may call for
higher or lower levels of stimulation based on the state of the infant. The state
may be a quiet sleeping state, active sleep state, drowsiness state, quiet alert state,
fussing state, crying state, and the like. The state may be matched to the optimal
stimulus level of an individual infant. Levels may also be adjusted to match the age
of the infant, for example during the first month of the life of the infant. Failure
to exceed the optimal stimulus level may result in an absence of response by the infant
to the mechanism. The mechanism may be activated by sound generated by the infant,
movement generated by the infant, abnormal biometric signals, and the like. The output
of the mechanism may cause reductions in motor output levels. The infant calming/sleep
aid device 2258 may automatically shut down if an infant is not calmed by higher levels
of motion and sound. Higher levels of motion and sound may be called Intervention3
and Intervention4. The infant calming/sleep aid device may teach infants to sleep
better by training the sleep pattern of the infant using sleep cues. Sleep cues may
be swaddling, effective motion, optimal sound, and the like. Motion may take on characteristics
of a more square-shaped wave as the platform moves more quickly.
[0102] The mechanism to activate the calming reflex or the conditioned response of an infant
may be activated by a feedback based control mechanism. The feedback based control
mechanism may select modes, parameters, parameter ranges, and the like. Modes may
be motion modes, sound modes, and the like. Parameters may be motion parameters, sound
parameters and the like. Parameter ranges may be motion parameter ranges, sound parameter
ranges, and the like. The feedback based control mechanism may provide motion feedback
to control the motion of the swing of the infant calming/sleep aid device 2258. The
motion feedback may activate a calming reflex of the infant to provide vestibular
stimulation in the inner ear of the infant. The feedback based control mechanism may
operate as a feedback loop. The feedback loop may result in a reduction overtime of
the mechanism to activate the calming reflex or conditioned response of an infant.
For example, it may be desirable to wean an infant from the motion of the infant calming/sleep
aid device 2258 starting when the infant is of the age 3-4 months. The feedback based
control mechanism may be activated by a remote control, a camera mounted on the infant
calming/sleep aid device 2258, and the like. The remote control may be operated by
a parent. The parent may be in the same room as the infant calming/sleep aid device
2258, or a different room than the infant calming/sleep aid device 2258.
[0103] The infant calming/sleep aid device 2258 may provide analytics and algorithms. The
analytics and algorithms may be based on readings from microphone, sensors and the
like. The analytics and algorithms may provide feedback input to the mechanism to
activate the calming reflex of an infant. The algorithms may analyze combinations,
store combinations, replicate combinations and the like. Sensors may provide sensor
readings. Sensor readings may have ranges. A range may be a sound range, a motion
range, and the like. A sound range may be based on the blood flow/heartbeat of a mother.
The heartbeat may be 80 bpm, 160 bpm, 240 bpm, and the like. The motion range may
be between .5-4.25 Hz.
[0104] The analytics and algorithms may be used to detect if an infant is upset or has apnea.
The detection may be based on visual inspection, continuous detection, and the like.
Visual inspection may be used to initiate a calming mechanism involving a relatively
step wise and high frequency motion. Continuous detection may shift into a remain
calm protocol, may use a sensor, and the like. A sensor may detect if the infant is
in the infant calming/sleep aid device 2258, and the like. According to the invention,
a sensor detects if the secure sleep sack is properly attached to the infant calming/sleep
aid device 2258. The mechanism may only turn on if the sensor detects that the sleep
sack is properly installed in the infant calming/sleep aid device 2258.
[0105] The infant calming/sleep aid device 2258 may provide an application programming interface
(API). The API may allow integration of the infant calming/sleep aid device 2258 with
external devices and system. External devices and systems may provide additional control
inputs to activate the mechanism to activate the calming reflex or conditioned response
of an infant. The mechanism to activate these infant responses may provide inputs
to the external devices and systems. Control inputs may include sound control inputs.
Sound control inputs may be used to turn on and off external sound sources, turn on
and off sound sources internal to the infant calming/sleep-aid device mechanism, and
the like. The sound control inputs may provide the user the ability to choose which
sound sources to activate and even to introduce their own novel sounds, such as a
recording of a parent's voice. Integration may be by wired or wireless connectivity.
Wired connectivity may include the use of a hard-wired splitter. Wireless connectivity
may include Wi-Fi connectivity, blue-tooth connectivity, and the like. External devices
and systems may be home automation network external devices and systems and allow
integration of the infant calming/sleep-aid device 2258 with a home automation network.
Integration with the home automation network may enable the infant calming/sleep-aid
device 2258 to report to a user or allow the user to remotely control the infant calming/sleep-aid
device 2258. Integration may include integration with monitors. Monitors may include
carbon monoxide monitors, oxygen level monitors, breathing monitor, oxygen saturation
monitors, motion monitors, temperature monitors, smoke monitors, heart rate detector
monitors, respiratory rate monitors, and the like. Monitors may provide an input to
activate the infant calming/sleep-aid device 2258 that may activate the infant calming/sleep-aid
device 2258. The infant calming/sleep aid device 2258 may be activated to attempt
to wake an infant, such as by stimulation with vigorous motion or loud sound or both.
An infant may be stimulated to prevent sudden infant death syndrome (SIDS). Integration
may also include integration with safety systems. Safety systems may include home
safety systems, infant safety systems, child safety systems, and the like.
[0106] The infant calming/sleep-aid device may also include collapsible walls and legs,
handles, cord, wheels, and the like. Collapsible walls may enable portability and
adjustability. Portability may include ease of moving the infant calming/sleep-aid
device around a room, facilitate shipping, travel, aging of the baby, a standing position,
user or stroller height, and the like. Cord may be a retractable cord, a break-away
cord, and the like. Wheels may be implemented when collapsed, and the like. Legs may
be extendable, telescoping, collapsible or removable and rotated/reinserted to be
a different height, and the like. The infant calming/sleep-aid device 2258 may be
made available in a lightweight embodiment, include a stand trolley, and the like.
Stand trolley may include wheels for inside transport, make the infant calming/sleep-aid
device 2258 reconfigurable into a stroller, provide stability, motor removal, enable
transportability, and the like. Stability may include stability during motion, stability
during strolling, and the like. The infant calming/sleep-aid device 2258 may be made
available in a variety of colors and color combinations. Color and color combinations
may be user selectable and may be changeable via alterative veneers, alternate ornamental
fabric decoration strips, mesh color/design, sleep sack color/design, and the like.
The infant calming/sleep-aid device 2258 may be made available in organic materials,
appealing designs, and the like. The infant calming/sleep-aid device 2258 may be certified
for safety, certified for safety in many categories, and the like. The infant calming/sleep-aid
device 2258 may have removable mesh that allows for creating individually selected
designs printed on the outside mesh. The accelerometer 2223 of the infant calming/sleep-aid
device may measure head excursions to prevent excessive motion, and the like. The
infant calming/sleep-aid device 2258 may be made include flexible mesh. Flexible mesh
may provide better airflow and allow broader excursions of the main moving platform
16. The flexible mesh must be made stiff enough to prevent a pocket forming to potentially
suffocate an infant who rolls into it, however flexible enough to allow for give so
the top platform may sway back and forth.
[0107] A mattress may include a gel pad on which the head of the infant may rest. A weight
sensor may be underneath the gel pad. The infant calming/sleep-aid device 2258 may
not activate or may shut off if the weight sensor under the gel pad does not indicate
that the head of the infant is resting on the gel pad.
[0108] The infant calming/sleep-aid device 2258 includes a sleep sack that has an attachment.
The attachment attaches the sleep sack to a main moving platform. FIG. 24a illustrates
an illustrative and non-limiting embodiment of the attachment. FIG. 24b illustrates
an exemplary and non-limiting embodiment of the infant calming/sleep-aid device 2258
with an attachment mechanism 2402. Attachment mechanism 2402 may secure the sleep
sack to the infant calming/sleep-aid device 2258. Attachment may be via a one-handed
attachment mechanism, and the like. Infant calming/sleep-aid device 2258 may not switch
on if the sleep sack is not properly secured to the infant calming/sleep-aid device
2258. In this regard, FIG. 28 illustrates an exemplary embodiment of a clip for detecting
if an infant is properly secured, in order to control operation of the device. In
embodiments, two clips may act to sense when attachment pieces of a sleeping sack
are in place to indicate that an infant is securely fastened on a support surface
of the infant calming/sleep aid device. Various control modes can follow. For example,
motion of the device may be prohibited/disabled if an infant is not properly secured
while allowing sound to still be generated. Other sensors are also envisioned for
detecting if an infant is properly secured, such as a contact switch, or optical switch,
or the like, such as shown in FIG. 29. For example, safety clips that the secure sleep
sack attaches to may contain a switch that enables the motion mechanism. Failure to
properly attach the secure sleep sack will result in the device delivering sound,
but no motion when it is turned on. Motion will only be delivered if the secure sleep
sack is properly attached on each clip.
[0109] The location of the sleep sack attachment may be adjustable. For example, the location
of the sleep sack attachment may be adjustable by 5.08cm to 7.62cm (two to three inches)
or so.
[0110] The sleep sack may allow enough room in the sack for the hips of the infant to flex
and open. The sleep sack may keep the arms of the infant at the sides of the infant.
An internal band may be used to keep the arms of the infant at the sides of the infant.
The secure sleep sack may have arm openings. Arm openings may be opened or closed.
The sleep sack may have a zipper closure. The zipper may open in an upwards direction,
a downwards direction, and the like. The sleep sack may have an adjustable area on
the back. The sleep sack may have a narrow sleeve or light elastic at the end of the
sleep sack wing, on the clip attached to the infant calming/sleep-aid device 2258,
and the like.
[0111] The sleep sack may be available in different designs. Designs may be printed designs.
Printed designs may non-threatening designs. Non-threatening designs may be animal
designs, angel designs, wings, and the like. Designs may be available with options,
changeable, engaging, and the like. The sleep sack may be available in various materials.
Materials may include a mesh component, be adapted for the seasons, and the like.
A mesh component may be a cooling component, a breathable component, and the like.
Mesh may prevent overheating and reduces the risk of suffocation. The breathable component
may include active airflow to increase breathability. Adaptability for the seasons
may include adaptability for warm temperatures, cold temperatures, and the like. The
sleep sack may include interior sleeves.
[0112] FIGS. 25a-25j illustrate a sleep sack according to illustrative and non-limiting
embodiments. FIG. 25a illustrates a front view of the sleep sack in a closed position
with an infant inside of the sleep sack. FIG. 25b illustrates a front view of the
sleep sack in an open position with an infant inside the sleep sack. FIG. 25c illustrates
a back view of the sleep sack with an infant inside the sleep sack. FIGS. 25d-25e
illustrate front views of the sleep sack in a closed position. FIG. 25h illustrates
an infant in the sleep sack and the sleep sack attached to the main moving platform
16. FIG. 25i illustrates a front view of the sleep sack. FIG 25j illustrates a rear
view of the sleep sack.
[0113] The infant calming/sleep-aid device 158 may have selectable modes. Selectable modes
may be selected with an algorithm. The algorithm set point may be based on the age
of the infant. The infant calming/sleep-aid device 158 may ask for dates of the infant
from a user. Dates of the infant may be due date, birth date, and the like. The infant
calming/sleep-aid device may ask the user if the infant was born early, late, and
the like. Age of the infant may be based on the age inputs. Age inputs may be dates
of the infant, if the infant was born, early, late, and the like. Algorithm set point
may be calculated by asking the age of the infant, then subtracting the age of the
infant from the birth date of the infant. Algorithm set point may also be calculated
by setting the birth date of the infant to the due date of the infant. Age of the
infant may be provided in months, weeks, days, and the like.
[0114] The infant calming/sleep-aid device 158 may have a start mode. Start mode may be
initiated when the infant calming/sleep-aid device 158 is turned on to operate and
may be based on the age of the infant. Start mode for an infant less than 0 months
old may be Baseline and may not go higher than Intervention2. Start mode for an infant
that is between 0 and 0.5 months may be Initial1 and may not go higher than Intervention2.
Start mode for an infant that is between 0.5 and 3 months may be Initial1. Start mode
for an infant between 3 and 4 months may be Baseline or Initial1 if Baseline Boost
is active. Start mode for an infant that is older than 4 months may be initial 1 with
1.0 Hz motion and may then use no motion and normal sound in Baseline. Normal sound
may be 68 dB Rain on the Roof.
[0115] Selectable modes may be modified by a Baseline Boost setting. Baseline Boost setting
may be based on the age of the infant. Baseline boost for an infant that is younger
than 0 months may not be activated. Baseline Boost setting for an infant that is between
0 and 1 month may cause the infant calming/sleep-ad device 158 to start in Initial1
when switched on and may use Initial1 settings in Baseline. Baseline Boost setting
for an infant that is between 1 and 3 months may cause the infant calming/sleep-ad
device 158 to start with a more robust level of sound, or motion, or both. This level
may be equivalent to Initial1 when the device is switched on and may use 1.0-2.0 Hz
motion and 70 dB sound settings in Baseline. Baseline Boost setting for an infant
that is between 3 and 4 months may cause the infant calming/sleep-ad device 158 to
start in Initial1 with 1.0-2.0 Hz motion setting when switched on and may then use
normal settings in Baseline. Baseline Boost setting for an infant that older than
4 months may cause the infant calming/sleep-ad device 158 to start in Initial1 with
0.5-1.5 Hz motion when switched on and may use no motion and normal sound settings
in Baseline. Normal sound may be 68-74 dB Rain on the Roof sound.
[0116] When Baseline Boost is set for an extended setting, it may automatically revert to
default after 14 days of activation, immediately, and the like. Revert to default
immediately may occur when the infant calming/sleep-aid device 158 is reset for a
new infant.
[0117] Selectable modes may include Baseline, Intervention1, Intervention2, Intervention3,
Intervention4, and the like. Baseline mode settings may be based on the age of the
infant. Baseline mode settings for an infant between 0 and 1 month may be 1.0 Hz motion
and Rain on the Roof at 70 dB sound, for an infant between 1 and 4 months 1.0 Hz motion
and Rain of the Roof at 68 dB sound, for an infant older than 4 months 0.0 Hz motion
and Rain on the Roof at 68 dB sound, and the like. Baseline when Baseline Boost is
activated for an infant between 0 and 1 month may be 2.0 Hz motion and Rain on the
Roof at 72 dB sound, for an infant between 1 and 3 months 2.0 Hz motion and 70 dB
Rain on the Roof sound, and the like. Baseline may step up to Intervention1 if Crying_D1
is detected. Crying_D1 may trigger at 0.6 accumulated seconds of Crying Audio Classification
time during a period of 6 seconds, and the like.
[0118] Intervention1 may be 2.5 Hz motion and Rain on the Roof at 72 dB sound. Intervention1
may step up to Intervention2 if Crying_D1 is detected, otherwise go to CoolDown3 after
8 minutes.
[0119] Intervention2 settings may be based on the age of the infant. Intervention2 settings
for an infant younger than 0.5 months may be 2.8 Hz motion and Strong Hair Drier sound
at 75 dB, may switch to Timeout if Crying_D2 is detected in the last 10 seconds (3:50
to 4:00), otherwise step to CoolDown2 after 4 minutes, and the like. Crying_D2 may
trigger at 1.2 accumulated seconds of Crying Audio Classification time in a period
of 6 seconds, and the like.
[0120] Intervention2 settings for an infant between 0.5 and 1 month may be 2.8 Hz motion
and Strong Hair Drier sound at 75 dB, may step up to Interventions if Crying_D2 is
detected, otherwise go to CoolDown2 after 4 minutes, and the like. Intervention2 settings
for an infant older than 1 month may be 3.0 Hz motion and Strong Hair Drier sound
at 75 dB, may step up to Intervention3 if Crying_D2 is detected, otherwise go to CoolDown2
after 4 minutes, and the like.
[0121] Intervention3 settings may be based on the age of the infant. Interventions settings
for an infant between 0.5 and 1 month may be 2.8 Hz motion and Fast and Vigorous sound
at 79 dB, and the like. Interventions settings for an infant older than 1 month may
be 3.25 Hz motion and Fast and Vigorous sound at 79 dB, may switch to Timeout if Crying_D2
is detected in last 10 seconds (2:20 to 2:30), present user option to use Intervention4,
otherwise Step to CoolDownl after 2.5 minutes, and the like. CoolDownl settings may
be based on the age of the infant. CoolDownl settings for an infant between 0.5 and
1 month may be 2.8 Hz motion, Strong Hair Drier 75 dB sound, for an infant older than
1 month 3.0 Hz motion and Strong Hair Drier 75 dB sound, and the like. CoolDownl may
step up to Intervention3 if Crying_D2 is detected, otherwise go to CoolDown2 after
4 minutes, and the like. CoolDown2 may be 2.5 Hz motion and Strong Hair Drier sound
at 72 dB and the like. CoolDown2 may step up to Intervention2 if Crying_D2 is detected,
otherwise go to CoolDown3 after 8 minutes, and the like. CoolDown3 settings may be
1.8 Hz, Rain on the Roof sound at 70 dB, and the like. CoolDown3 may step up to Intervention1
if Crying_D2 is detected, otherwise got to Baseline after 12 minutes, and the like.
[0122] Intervention4 may be only manually activated. Intervention4 settings may be based
on the age of an infant. Intervention4 settings for an infant between 0.5 and 1 month
of age may be 2.8 Hz Fast and Vigorous at 81 dB sound, for an infant older than 1
month 3.25 Hz Fast and Vigorous sound at 85 dB, and the like. Intervention4 may switch
to Timeout if Crying_D2 in last 10 seconds (1:50 to 2:00) is detected, otherwise return
to regular operation by auto-stepping to Interventions after 2 minutes, and the like.
[0123] Timeout may be no alarm, alarm noise then silence, and the like. Alarm noise may
be 6 beeps with 1 second timing between beeps, 4 second pause, 3 beeps with 1 second
timing between the beeps, and the like. Timeout may also include an LED. LED may be
a red LED, flashing until the infant calming/sleep-aid device 158 is reset by the
user, and the like.
[0124] The infant calming/sleep-aid device 2258 may include other safety mechanisms that
may impact the selection and activation of the operational modes. Other safety mechanisms
that may impact the selection and activation of the operational modes may include
shutting off if Interventions has ended and the infant is still crying, shutting off
if Intervention4 has ended and the infant is still crying, not starting if the sleep
sack is not properly engaged, not starting if the infant's head is not sensed to be
in the proper location, stopping if the infant's head is sensed to no longer be in
the proper location, not starting if the infant calming/sleep-aid device 2258 has
been activated for longer than 6 hours in the day for the first two months, may not
start if a sensor detects that the baby is not aligned properly in the infant calming/sleep-aid
device 2258, and the like. If the infant calming/sleep-aid device 2258 has shut off
because either Interventions or Intervention4 has ended and the infant is still crying,
the infant calming/sleep-aid device 2258 may be reset, in order to allow the infant
calming/sleep-aid device 2258 to be activated again.
[0125] The infant calming/sleep-aid device 2258 may include protocols, profiles, components,
and add-on's. Protocols may be based on the age of the infant and how upset the infant
is. Protocols may be based on functions. Functions may be motion functions, sound
functions, light indicator functions, ambient light sensor functions, light generation
functions, or combinations of functions. Light indicator functions may be a night
light, an indicator to provide a warning to a user when the user is shaking the infant
calming/sleep-aid device 2258, an indicator to signal which intervention levels are
being delivered, and the like. The indicator to provide a warning to a user when the
user is shaking the infant calming/sleep-aid device 2258 may indicate that the level
of shaking may be unsafe. Light indicator functions may be integrated with the infant
calming/sleep-aid device 2258, displayed on a connected device, and the like. A connected
device may be a smartphone, tablet computer, and the like. Ambient light sensor functions
may be integrated with the infant calming/sleep-aid device 2258, located on a connected
device, and the like. Light generation functions may be functional, aesthetic, and
the like. Functional light generation functions may illuminate the user interface
of the infant calming/sleep-aid device 2258, provide an orange melatonin inducing
night light, and the like. Profiles may be based on knowledge of an infant profile,
user override using preferences, and the like. User override may provide the user
with several choices to override and raise the baseline intervention. Components may
be cords, batteries, motors, and the like. Cords may be breakaway cords, retractable
cords, and the like. Batteries may be rechargeable as an option for sound, and the
like. Add-on's may be cameras, scales, measuring devices, a kit for turning the infant
calming/sleep aid device 2258 into a crib, playpen, or the like, extra blankets, sheets,
skins, parts, a travel bag, and the like.
[0126] The infant calming/sleep-aid device 2258 may facilitate interface integration. Interface
integration may facilitate integration with interfaces such as Bluetooth interfaces,
hard-wired interfaces, home automation network interfaces, monitors, and the like.
Hard-wired interfaces may include hard-wired splitter interfaces. Monitors may include
carbon monoxide monitors, safety monitors, and the like. Safety monitors may include
home safety monitors, baby safety monitors, child safety monitors, and the like.
[0127] The infant calming/sleep-aid device 2258 may comprise a user interface. The user
interface may comprise a control panel. The control panel may control options such
as motor speed, modulation, speaker output, and the like. The control panel may comprise
knobs, switches, lights, motion activation, sound activation, interfaces to drive
electronics and other I/O methods.
[0128] The infant calming/sleep-aid device 2258 may comprise sub-assembly components. Such
components may comprise amplitude modulation components, screws, gears, nut frames,
springs, and the like.
[0129] The infant calming/sleep-aid device 2258 may comprise a head platform. The head platform
may passively rotate. The head platform may comprise a spring system using injection
molded plastic as the spring/damper to reduce noise and parts required. The head platform
may comprise a plurality of dampers. The head platform may comprise a covering. The
cover may be flexible, cloth, foam, or the like. The head platform may comprise joint
connectors, such as, but not limited to, hinge and rod connectors. The head platform
may comprise bearings such as, but not limited to rotation and head rotation bearings.
The head platform may comprise wraps. The wraps may comprise swaddling wraps, fastening
wraps, and the like.
[0130] The infant calming/sleep-aid device 2258 may comprise an enclosure around a sleep
surface. One embodiment may have a light mesh veil/mosquito netting over the top of
the device. One embodiment may have an ornamental animal head and tail that may be
attached onto the device. The sleep surface may comprise a position stabilizer. The
surface may secure a baby in supine position to prevent unraveling or rolling and
to maintain optimal stimulation positioning. The infant calming/sleep-aid device 2258
may comprise a single head platform which may passively rotate and which may be constrained
by springs or dampers. The sleep surface body platform made from flexible cloth covering
or flexible foam padding. In embodiment, the sleep surface may comprise a movable
joint connector using hinges, rods, or the like. In embodiments, the sleep surface
may comprise a support platform. In embodiments the sleep surface may comprise bearings.
In embodiments, the sleep surface may comprise a special head insert to reduce pressure
on back of skull. In embodiments, the infant calming/sleep-aid device may comprise
adjustable legs allowing variable height configurations. In embodiments, the sleep
surface may comprise a secure sleep sack. In embodiments, the sleep surface may interact
with an electronically programmable interface system. The interface system may comprise
a control panel. The control panel may comprise switches, lights, and other I/O interface
capabilities. The interface system may comprise automated programming selections or
may allow a user to select device settings, such as duration. In embodiments, the
sleep surface may comprise drive electronics to control drive motor speed, an amplitude
modulation motor, and speaker audio output. Speaker outputs may comprise specified
equalizer settings i.e. the use of special sound profiles to promote sleep and reduce
crying. In embodiments, the sleep surface may comprise plates such as drive plates
or swing arm plates, among others. In embodiments, the sleep surface may comprise
a push or pull rod. In embodiments, the sleep surface may comprise drive motor connections
to different drive types such as clamps, bearings, pins, among others. In embodiments,
the sleep surface may comprise an elastic actuator catch bracket. In embodiments,
the sleep surface may comprise a sub-assembly to directly control the amplitude output
of the main rotating platform. The sub-assembly may comprise components such as, but
not limited to, amplitude modulation rotational bearings, acme screws, acme nuts,
acme nut frames, and gears. In embodiments, the sleep surface may comprise an amplitude
modulation motor.
[0131] The infant calming/sleep-aid device 2258 according to the invention comprises a motion
generation and drive mechanism for a crib. The mechanism comprises an electronic motor.
The motor may be isolated from proximity to the baby for EMR shielding. The mechanism's
movement may take into account wear and tear. The mechanism may comprise elastic walls
to move with the mattress. The mechanism may comprise a swing arm crank shaft either
directly or indirectly attached to the motor. The mechanism may comprise a plurality
of springs such as injected plastic springs. The mechanism may have stability components
in order to compensate for interactions with the stand and the environment. The mechanism
may move in a sinusoidal motion when the infant is asleep and a non-sinusoidal motion
when the infant is awake or crying, to attempt to calm the child down. The mechanism
may operate with a direct amplitude adjustment or may operate without such direct
adjustments. Direct amplitude adjustment settings may comprise a slow and large amplitude
setting (e.g. 30 cycles per minute and 6 cm/cycle at the head), a fast and short amplitude
setting (e.g. 150 cycles per minute and 3 cm/cycle at the head), a rapid and short
amplitude setting (e.g. 180 cycles per minute and 2 cm/cycle at the head, among other
combinations (e.g. 4.5 Hz, 270 cpm, range 150-270 cpm). The mechanism may comprise
an accelerometer in order to measure head movement. In embodiments, the mechanism
may work in conjunction with sensors placed under a mattress to detect when or if
an infant is in the crib without being secured in the sleep sack. The mechanism may
stop movement if the sensors detect that the infant is in a compromised position or
if the infant is no longer in the sleep sack. Movement may also stop when a calming
movement mode has been completed and the infant is still crying. In embodiments, users
may not be able to manually select movements and may warn users if safety parameters
are not met, such as excessive acceleration or unsafe frequency. In embodiments, a
manual override may be provided to uncouple the motion generator if a motion is undesirable
[0132] The infant calming/sleep-aid device 2258 may comprise a crib sound system. In embodiments,
equalizer settings may be provided for optimal pitch profiles (e.g. sound levels are
mixed with increasing high pitch profiles as a baby cries more). The sound system
may comprise speakers and may generate sounds similar to those hard by the babies
in utero. For example, sounds may be generated to replicate the turbulence of blood
flowing through uterine and umbilical arteries. In embodiments, the high frequency
component may be diminished (e.g.65 to 70 dB with a profile predominantly about <
500Hz). In other embodiments, the system may be capable of a harsher sound (e.g. 70
to 75 dB with a profile predominantly about < 1000Hz) or a multi-frequency sound (e.g.
75 to 80 dB with a profile from 0 to 16000 Hz). In embodiments, the system may be
calibrated not to exceed 85 dB at the infant's head, not to exceed more than 18 hours
a day to prevent overuse and not to exceed 85 dB for longer than 20 minutes of an
hour. If such levels are exceeded, a notification may be provided to a user in order
to stop usage. In embodiments, the speaker may make an alarm sound when the device
times out. In embodiments, the sound system may comprise variable volume controls.
In embodiments, the sound system may be able to detect sounds. Such detections may
be conducted by microphones to sense warnings, to hear a child, or to indicate the
duration a child has been crying, among other uses. The sound system may be used to
conduct analysis on such detections. In embodiments, the sound system may be battery
operated. Sounds may be imported into sound interface applications, such as Dolby
Advanced Audio v2, to provide music, voices, singing as an overtone, or interactively
talk to the infant via the application API. In embodiments, the sound system may be
removed or dampened.
[0133] In embodiments, the infant calming/sleep-aid device 2258 may comprise microprocessors
for use in the crib. Microprocessors may be used to differentiate sounds, such as
infant sounds, system sounds, or ambient noise. Microprocessors may be used to record
and analyze sounds. Such sounds may include sounds which reflect a baby's state (e.g.
sleeping, crying) or to provide feedback. Microprocessors may be used to generate
responses and deliver the optimal mix of sound and motion for a specific. For example,
a user may implement an initial combination of sound and motion for the first few
uses, then switch to a different program based on a child's reaction to the uses.
Microprocessors may be used to respond to changing states, such as to calm crying,
reduce sleep latency, increase sleep efficiency, among others. Microprocessors may
also be used to wean infants off of motion and sound as they age. For example, the
device may increase sound and motion as child gets older and then automatically wean
the baby off motion as he or she gets over 4 months. The device may also react to
incidents of waking and reduced crying. Microprocessors may take in inputs such as
the weight of an infant, age of infant, whether the infant was delivered on time,
the duration of detected sound made by infant, the duration of detected motion of
infant, the desired motion state, the sensed motion frequency, the amplitude of main
platform, the desired system speed, whether motion of main rotating platform exceeds
safety threshold, and the like. The microprocessor may generate outputs such as motor
control, audio responses and visual signals.
[0134] The infant calming/sleep-aid device 2258 may comprise a mechanism for the more square
waveform generation for a crib. Such a mechanism may be enabled by flexible joint
connecting head and body platform. The main rotating platform may use a variety of
variables to determine the waveform generation, such as weight of infant, drive motor
frequency, balancing compression spring force constant, as well as other variables.
[0135] The infant calming/sleep-aid device 2258 may rely on several algorithms in order
to generate outputs to calm an infant. The device may analyze certain output combinations
that have succeeded, store such combinations, and then replicate these combinations.
The device may create profiles based on knowledge of a child's physiological or behavioral
parameters or based on a parent or user's overrides and preferences, among a variety
of other parameters.
[0136] The infant calming/sleep-aid device 2258 may comprise a motion analysis module. The
module may comprise a motion amplitude estimate signal, a threshold-crossing based
motion frequency estimator, a time-based filter, a digital filter bank, a filtered
accelerometer data signal, and a motion frequency estimate signal among others. The
infant calming/sleep-aid device 2258 may comprise a behavior state machine module,
an audio generation module, a crying detection module, and the like. The crying detection
module may comprise a digital band-pass filter and a time-based filter.
[0137] The infant calming/sleep-aid device 2258 may comprise a mattress for a crib. The
mattress may be made from organic materials such as organic latex, coconut fiber,
or polyethylene, and may comprise a gel pad for the head. The mattress may be created
for firmness or softness preferences, and may also be waterproof. Compatible sheets
may be used for the mattress and the mattress may contain circuitry so that it may
maintain connectivity with walls, the mattress, and the platform.
[0138] The infant calming/sleep-aid device 2258 may be controlled remote by smartphone or
other mobile device using communication standards such as Bluetooth. The infant calming/sleep-aid
device 2258 may comprise variable motion and sound capabilities as well as a feedback
loop and mechanisms to reduce functionality over time. The infant calming/sleep-aid
device 2258 may comprise a moving platform and may have a dual range of motion. The
infant calming/sleep-aid device 2258 may comprise a plurality of collapsible walls
and legs. Such functionality may aid in shipping, travelling, aiding a child to stand,
among other uses. The functionality may change depending on the age of the infant
or the stroller height/height of the baby's mother. The infant calming/sleep-aid device
2258 may comprise handles, wheels, and legs that may be extendable, adjustable, or
collapsible. The infant calming/sleep-aid device 2258 may comprise trolley functionality
to transform the device into a stroller or it may comprise a crib functionality to
transform the device into a crib. The infant calming/sleep-aid device 2258 may comprise
wheels for transport. The infant calming/sleep-aid device 2258 may comprise a removable
motor. The infant calming/sleep-aid device 2258 may comprise flexible and removable
mesh components. One embodiment envisions the ability to re-obtain back units and
refurbish them to resell on a secondary market.
[0139] In embodiments, the infant calming/sleep-aid device 2258 may generate a plurality
of outputs. Such outputs may be user modes such as movement modes. Movement modes
may comprise short and large amplitude modes, fast and short amplitude modes and rapid
and short amplitude modes, among others. Outputs may also comprise sound modes such
as modes where the high frequency component is diminished, modes that produce a harsher
sound and modes that produce a multi-frequency sound.
[0140] The infant calming/sleep-aid device 2258 may comprise sensors such as, but not limited
to, audio sensors, motion sensors, biometric, a camera, other third party sensors,
flexible sensors, accelerometers, a warning system, and a manual override. The infant
calming/sleep-aid device 2258 may comprise certain product add on components such
as a camera, a scale, an ambient temperature thermometer, a heart rate monitor, a
respiratory rate monitor, an oxygen monitor, a measuring device, a kit for turning
the device into a crib, a kit for turning the device into a playpen, extra accessories,
a microphone, and sound importing capabilities, such as music, voices, singing, and
interactive talking via an API. In embodiments, device components may be removable.
The infant calming/sleep-aid device 2258 may comprise an electrical cord that may
be able to break away or may be retractable. The infant calming/sleep-aid device 2258
may comprise batteries, and in embodiments, batteries which may be rechargeable. The
infant calming/sleep-aid device 2258 may comprise light indicators such as a night
light, or a shaking detection light, ambient light sensors, functional lights (e.g.
to light up the user interface, to induce melatonin, to assess manual jiggle, to function
as a stroller light), and lights to signal that an intervention level is being delivered.
The infant calming/sleep-aid device 2258 may comprise several different aesthetic
features, such as changing designs.
[0141] The infant calming/sleep-aid device 2258 may employ a plurality of different parameters.
In embodiments, sound and motion ranges may be restricted. In embodiments, the device
may use different thresholds or triggers to deliver output. Such triggers may include
sensory inputs, behavioral inputs, variational inputs, head movement, acceleration,
frequency, amplitude, rotation, safety, number of waking incidents, number of crying
incidents, abnormal biometric readings and an infant's measurements, among others.
Variational inputs may include individual variations, optimal stimulus level data,
and state data such as type of sleep, drowsiness, quietness, fussing, or crying. The
infant calming/sleep-aid device 2258 may rely on duration inputs for sound and motion.
The infant calming/sleep-aid device 2258 may rely on target inputs such as desired
motion state or desired system speed. The infant calming/sleep-aid device 2258 may
rely on noise detection from the system, infant, or ambient noise and also rely on
biometric sensors. The device may differentiate between multiple types of noise. The
infant calming/sleep-aid device 2258 may rely on filters such as band-pass, digital
band-pass, time-based, a filter bank, or a digital filter bank, among others.
[0142] The infant calming/sleep-aid device 2258 may comprise materials such as flexible
mesh and seasonal materials. Such materials may be warm, light, or breathable depending
on the environment in which the device is deployed.
[0143] The infant calming/sleep-aid device 2258 may be deployed for several uses such as,
but not limited to monitoring, reporting, control, analytics, reports/statistics,
sharing/groups, benchmarking/comparison, graphics, acoustic signature of the cry,
organizational data, expert feedback, communications (e.g. walkie-talkie), providing
alerts (e.g. warning alerts, health concern alerts), overtone customization of the
white noise, photo/video/audio input, journal sharing/printout, automatize diaper/formula
ordering online, weight determination, breastfeeding determination, and image capturing
uses, among others.
[0144] The infant calming/sleep-aid device 2258 may be integrated to work with a smartphone
or other similar mobile device. The device may communicate with the mobile device
using methods such as USB, Bluetooth, and Wi-Fi, among others. The mobile phone may
be used to input information such as weight (at birth and longitudinal weight), length
(at birth and longitudinal), head size (at birth and longitudinal), the frequency
of feeding, frequency of diaper changes and sleep behavior, among others. User may
be able to use their mobile device to instantly create and share graphic displays
of their baby's sleep pattern over different periods of time, among many other uses.
[0145] Devices of the type depicted in this disclosure were tested in the following way:
A baby was placed in a swaddling sack (with arms in or out) attached to the mattress
of the device and securely laid on his/her back. The device produced a baseline level
of low pitched, rumbling noise at approximately 65 dB and baseline motion of a smooth,
side-to-side rocking (2 inch excursions to either side). When the baby cried for more
than ∼10 seconds, the device responded by playing a specially engineered sound that
was harsher, higher pitched, more multi-frequency (75-80 dB) to mimic the intensity
of the sound that the baby heard inside the mother's uterus prenatally. (This sound
can be measured in situ at up to 92 dB.) If the crying continued another ∼10 seconds
(despite the sound), the motion accelerated to a faster, more jiggling action of the
head (2-3.5 cps, but no more than 1 inch head excursions to either side). The combination
of fast movements delivered with sufficient vigor, the harsh, loud sound, and the
secure sleep sack all worked together to activate the calming reflex, in the majority
of irritable babies and inducing either calmness or sleep. The device responded to
the baby's cry in a step-wise fashion-gradually increasing sound and then motion-to
a maximal level. Once the baby was calmed the motion and sound of the device was gradually
reduced in a specific, step- wise fashion back to the baseline activity.
Subjects
[0146] The device was tested on over twenty babies (12 girls, 10 boys) were in the device.
The babies ranged from 5 weeks to 6 months of age. Their weights ranged from 3.6kg
to 8.2kg (8 pounds to 18 pounds).
Methods and Procedures
[0147] The subjects were tested to record their resting and sleeping in the device. The
tests usually began when the baby was hungry and tired (immediately before their usual
naptime). The time when the baby was last fed and napped was recorded and then the
baby was put in the swaddling sack and placed in the device. Data from three accelerometers
and a device-mounted camera was recorded to detect the vigor of activity and measure
the exact excursions of the baby's head. Each test started with the device set at
its lowest level for sound and motion, and the device responded to the baby's cries.
The device was allowed to quickly advance through each of its stages as the cries
escalated. Once the baby was calmed, the device's motion would slow, in a stepwise
fashion, and the loudness and pitch of the sound would decrease, in a stepwise fashion.
This format was repeated 2-4 times during sessions with each of the subjects. The
first set of studies was done using a prototype with a dual motion actuator and the
second set of studies was done with a prototype with a single motion actuator.
Results
[0148] During twenty-one tests, 19 babies were either significantly calmed or put to sleep
by the device (absence of calming was due to hunger). Most calming and sleep occurred
within 2 minutes of placing the baby in the device.
[0149] This device is responsive to a baby's needs, such that an infant's upsets are typically
soothed by vigorous stimulation to activate the calming reflex, followed by a diminution
of those stimuli to help keep the calming reflex turned on and sustain the baby in
a calm state and/or promote sleep (i.e. reducing sleep latency and increasing sleep
efficiency.
[0150] "Sleep latency" may be defined as the length of time between going to bed and falling
asleep. "Sleep efficiency" may be defined as the ratio of time spent to the amount
of time spent in bed.
[0151] It is possible to promote infant calming and sleep through the use of swaddling plus
very specific sound and motion stimuli to activate the calming reflex.
[0152] While this invention has been particularly shown and described with references to
example embodiments thereof, it will be understood by those skilled the art that various
changes in form and details may be made therein without departing from the scope of
the invention encompassed by the appended claims.